{"id":4428,"date":"2026-05-21T10:51:48","date_gmt":"2026-05-21T10:51:48","guid":{"rendered":"https:\/\/productionscrews.com\/8-8-bolt\/"},"modified":"2026-05-21T10:52:16","modified_gmt":"2026-05-21T10:52:16","slug":"8-8-bolt","status":"publish","type":"post","link":"https:\/\/productionscrews.com\/ko\/8-8-bolt\/","title":{"rendered":"8.8 \ubcfc\ud2b8: 8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc758 \uc644\ubcbd \uac00\uc774\ub4dc, \uac15\ub3c4 \ubc0f \uc801\uc6a9 \ubd84\uc57c"},"content":{"rendered":"<h1>8.8 \ubcfc\ud2b8: 8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc758 \uc644\ubcbd \uac00\uc774\ub4dc, \uac15\ub3c4 \ubc0f \uc801\uc6a9 \ubd84\uc57c<\/h1>\n<p class=\"direct-answer\"><strong>8.8 \ubcfc\ud2b8\ub294 \uc778\uc7a5 \uac15\ub3c4 800 MPa, \ud56d\ubcf5 \uac15\ub3c4 640 MPa\ub97c \uac00\uc9c4 \ubbf8\ud130 \uaddc\uaca9 \ud328\uc2a4\ub108\ub85c, \uc790\ub3d9\ucc28, \uad6c\uc870\ubb3c, \uae30\uacc4 \ubd84\uc57c\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/strong><\/p>\n<p>\ud504\ub85c\uc81d\ud2b8 \uc911\uac04\uc5d0 '8.8'\uc774 \uac01\uc778\ub41c \ubcfc\ud2b8\ub97c \ub4e4\uace0 \uc788\ub294\ub370, \ubb38\ub4dd \uc774\ub7f0 \uc758\ubb38\uc774 \ub4ed\ub2c8\ub2e4: \uc774\uac8c \uc2e4\uc81c\ub85c \ubb34\uc2a8 \uc758\ubbf8\uc77c\uae4c? \ub0b4 \uc5d4\uc9c4 \ub9c8\uc6b4\ud2b8\uc5d0 \ucda9\ubd84\ud788 \uac15\ud55c\uac00? \uac15\ucca0 \ud504\ub808\uc784 \uc5f0\uacb0\uc5d0 \uc548\uc804\ud55c\uac00? \ucca0\ubb3c\uc810\uc5d0\uc11c \ud30c\ub294 Grade 5 \ubcfc\ud2b8\ub85c \uad50\uccb4\ud574\ub3c4 \ub420\uae4c? \uc774\ub7f0 \uc9c8\ubb38\ub4e4\uc740 \uc0ac\uc18c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4 \u2014 \ud558\uc911\uc744 \ubc1b\ub294 \uc870\uc778\ud2b8\uc5d0 \uc798\ubabb\ub41c \ubcfc\ud2b8\ub97c \uc0ac\uc6a9\ud558\uba74 \uce58\uba85\uc801\uc778 \uace0\uc7a5\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac00\uc774\ub4dc\ub294 \uc774\uc5d0 \ub300\ud574 \ubaa8\ub4e0 \uac83\uc744 \ub2e4\ub8f9\ub2c8\ub2e4. <strong>8.8 \ubcfc\ud2b8<\/strong>: \uc22b\uc790\uac00 \uc758\ubbf8\ud558\ub294 \uac83, \uc2e4\uc81c \uac15\ub3c4, \uc801\ud569\ud55c \uc6a9\ub3c4\uc640 \ubd80\uc801\ud569\ud55c \uc6a9\ub3c4\uae4c\uc9c0.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/productionscrews.com\/wp-content\/uploads\/2026\/05\/01-hero-32.png\" alt=\"8.8 \ubcfc\ud2b8 \u2014 8.8 \ub4f1\uae09 \uc721\uac01 \ubcfc\ud2b8\uc640 \ubbf8\ud130 \ud45c\uae30\uac00 \ud45c\uc2dc\ub41c \ub300\ud45c \uc77c\ub7ec\uc2a4\ud2b8\" \/><\/p>\n<hr \/>\n<h2>8.8 \ubcfc\ud2b8\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n<p><strong>8.8 \ubcfc\ud2b8\ub294 ISO \ub4f1\uae09 8.8\uc5d0 \ubd84\ub958\ub41c \ubbf8\ud130 \uaddc\uaca9 \ud328\uc2a4\ub108\uc785\ub2c8\ub2e4<\/strong>, \uc774\ub294 \ubcfc\ud2b8\uc758 \ud06c\uae30\uac00 \uc544\ub2c8\ub77c \uae30\uacc4\uc801 \uc131\ub2a5\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. \ubcfc\ud2b8 \uba38\ub9ac\uc5d0 \uac01\uc778\ub41c '8.8'\uc740 ISO 898-1\uc5d0 \ub530\ub978 \ub4f1\uae09 \ud45c\uc2dc\ub85c, \uc774\ub294 \ud0c4\uc18c\uac15 \ubc0f \ud569\uae08\uac15 \ud328\uc2a4\ub108\uc758 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uaddc\uc815\ud558\ub294 \uad6d\uc81c \ud45c\uc900\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc774 \ub450 \uc22b\uc790\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\uc785\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uccab \ubc88\uc9f8 \uc22b\uc790(8):<\/strong> \uacf5\uce6d \uc778\uc7a5 \uac15\ub3c4\uc758 1\/10(100 MPa \ub2e8\uc704)\uc785\ub2c8\ub2e4. \uc989, 8 \u00d7 100 = <strong>800 MPa \uacf5\uce6d \uc778\uc7a5 \uac15\ub3c4<\/strong>.<\/li>\n<li><strong>\ub450 \ubc88\uc9f8 \uc22b\uc790(8):<\/strong> \ud56d\ubcf5 \uac15\ub3c4\uc640 \uc778\uc7a5 \uac15\ub3c4\uc758 \ube44\uc728\uc744 10\ubd84\uc758 1 \ub2e8\uc704\ub85c \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc989, 8 \u00d7 10 = <strong>80% \ube44\uc728<\/strong>, \uc989 \ud56d\ubcf5 \uac15\ub3c4 = 800 \u00d7 0.80 = <strong>640 MPa<\/strong>.<\/li>\n<\/ul>\n<p>\uc774\ub85c\uc368 \uc138 \uac00\uc9c0 \uc911\uc694\ud55c \uae30\uacc4\uc801 \uac12\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<table>\n<tbody>\n<tr>\n<th>\uc18d\uc131<\/th>\n<th>8.8 \ub4f1\uae09 \uac12<\/th>\n<\/tr>\n<tr>\n<td>\uacf5\uce6d \uc778\uc7a5 \uac15\ub3c4<\/td>\n<td>800 MPa<\/td>\n<\/tr>\n<tr>\n<td>\ud56d\ubcf5 \uac15\ub3c4(\uc99d\uba85 \ud558\uc911 \uc0c1\ub2f9)<\/td>\n<td>\u2265 640 MPa<\/td>\n<\/tr>\n<tr>\n<td>\ud30c\ub2e8 \uc2dc \ucd5c\uc18c \uc5f0\uc2e0\uc728<\/td>\n<td>12%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>121%\uc758 \ucd5c\uc18c \uc5f0\uc2e0\uc728\uc740 8.8 \ubcfc\ud2b8\uac00 \ucde8\uc131\uc774 \uc5c6\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc989, \ud30c\ub2e8\ub418\uae30 \uc804\uc5d0 \ub208\uc5d0 \ub744\uac8c \ubcc0\ud615\ub418\uc5b4 \uad6c\uc870\uc6a9\uc73c\ub85c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc548\uc804 \ud2b9\uc131\uc744 \uac00\uc9d1\ub2c8\ub2e4. <a href=\"https:\/\/www.iso.org\/standard\/80529.html\" rel=\"noopener\" target=\"_blank\">ISO 898-1(\ubcfc\ud2b8 \ub4f1\uae09\uc744 \uaddc\uc815\ud558\ub294 \uad6d\uc81c \ud45c\uc900)<\/a>\uc5d0 \ub530\ub974\uba74, \ubaa8\ub4e0 '8.8' \ud45c\uc2dc\uac00 \uc788\ub294 \ud328\uc2a4\ub108\ub294 \uc81c\uc870\uc0ac\ub098 \uc6d0\uc0b0\uc9c0\uc640 \uad00\uacc4\uc5c6\uc774 \uc774 \ucd5c\uc18c \uae30\uc900\uc744 \ubc18\ub4dc\uc2dc \ucda9\uc871\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc758 \uc7ac\uc9c8 \uad6c\uc131<\/h3>\n<p>\ub300\ubd80\ubd84\uc758 8.8 \ubcfc\ud2b8\ub294 <strong>\uc911\ud0c4\uc18c\uac15(\ud0c4\uc18c \ud568\ub7c9 0.25~0.55%)<\/strong>\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\uba70, \uc77c\ubc18 \ub610\ub294 \ud569\uae08 \ud615\ud0dc\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc800\ub4f1\uae09 \ubcfc\ud2b8\uac00 \uc5f0\uac15\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\ub294 \uac83\uacfc \ub2ec\ub9ac, 8.8 \ub4f1\uae09 \ud328\uc2a4\ub108\ub294 <strong>\ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/strong> \uc774\ub77c\ub294 \uc5f4\ucc98\ub9ac \uacfc\uc815\uc744 \uac70\uccd0 \uc5f0\uc131\uc744 \uc720\uc9c0\ud558\uba74\uc11c\ub3c4 \uac15\ub3c4\ub97c \ud06c\uac8c \ub192\uc785\ub2c8\ub2e4. \uc774\uac83\uc774 \uc720\uc0ac\ud55c \uc6d0\uc7ac\ub8cc\ub85c \ub9cc\ub4e4\uc5b4\uc9c4 4.6 \ub610\ub294 5.8 \ub4f1\uae09 \ud328\uc2a4\ub108\uc640 8.8 \ubcfc\ud2b8\ub97c \uad6c\ubd84\ud558\ub294 \uc810\uc785\ub2c8\ub2e4.<\/p>\n<p>M16 \uc774\ud558 \ud06c\uae30\uc758 \ubcfc\ud2b8\uc758 \uacbd\uc6b0, \uc77c\ubd80 \uc81c\uc870\uc0ac\ub294 \uc911\ud0c4\uc18c \ubd95\uc18c\uac15\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. M16 \uc774\uc0c1 \ub300\ud615 \ubcfc\ud2b8\ub294 \uc804\uccb4 \ub2e8\uba74\uc5d0\uc11c \uc778\uc7a5 \uc694\uad6c\uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uae30 \uc704\ud574 \uc77c\ubc18\uc801\uc73c\ub85c \uc911\ud0c4\uc18c \ud569\uae08\uac15\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ub4f1\uae09 \ud45c\uc2dc \uc2dc\uc2a4\ud15c<\/h3>\n<p>\ubaa8\ub4e0 \uc815\ud488 8.8 \ubcfc\ud2b8\ub294 \ubcfc\ud2b8 \uba38\ub9ac\uc5d0 '8.8'\uc774 \ud45c\uc2dc\ub418\uc5b4 \uc788\uc73c\uba70, \uc81c\uc870\uc0ac\uc5d0 \ub530\ub77c \uc2dc\uacc4\ubc29\ud5a5 \uc704\uce58 \ud45c\uc2dc \ub610\ub294 \ub85c\uace0\uac00 \ucd94\uac00\ub429\ub2c8\ub2e4. \ub9cc\uc57d \ubcfc\ud2b8\uc5d0 \uc544\ubb34 \ud45c\uc2dc\uac00 \uc5c6\ub2e4\uba74, \ub4f1\uae09\uc744 \uc54c \uc218 \uc5c6\ub294 \uac83\uc73c\ub85c \uac04\uc8fc\ud558\uace0 \uad6c\uc870\uc801 \ub610\ub294 \uc548\uc804\uc774 \uc911\uc694\ud55c \uacb0\ud569\ubd80\uc5d0\ub294 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n<hr \/>\n<h2>8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc758 \uc885\ub958 \ubc0f \ubcc0\ud615<\/h2>\n<p>8.8 \ub4f1\uae09\uc740 <strong>\uac15\ub3c4 \ub4f1\uae09<\/strong>\uc774\uc9c0, \uba38\ub9ac \ubaa8\uc591\uc744 \uc758\ubbf8\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. 8.8 \ubcfc\ud2b8\ub294 \ub2e4\uc591\ud55c \ud615\ud0dc\ub85c \uc81c\uacf5\ub418\uba70, \uac01\uac01 \uc870\ub9bd \ubc29\uc2dd\uacfc \ud558\uc911 \uc870\uac74\uc5d0 \ub9de\uac8c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/productionscrews.com\/wp-content\/uploads\/2026\/05\/02-types-20.png\" alt=\"8.8 \ubcfc\ud2b8 \u2014 \uc721\uac01, \uc18c\ucf13 \ud5e4\ub4dc \ucea1, \ud50c\ub79c\uc9c0\ud615 \ub4f1 \ub2e4\uc591\ud55c \ud0c0\uc785 \uc77c\ub7ec\uc2a4\ud2b8\" \/><\/p>\n<h3>\uc721\uac01 \ubcfc\ud2b8(\uc804\ub098\uc0ac \ubc0f \ubd80\ubd84\ub098\uc0ac)<\/h3>\n<p>\uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ud615\ud0dc\uc785\ub2c8\ub2e4. <strong>\ubd80\ubd84\ub098\uc0ac \uc721\uac01 \ubcfc\ud2b8<\/strong> \ub294 \ubcfc\ud2b8 \uad6c\uba4d\uc5d0 \ub4e4\uc5b4\uac00\ub294 \ub9e4\ub048\ud55c \uc0f9\ud06c \ubd80\ubd84\uc774 \uc788\uc5b4 \uc804\ub098\uc0ac \ubcfc\ud2b8\ubcf4\ub2e4 \uc804\ub2e8 \ud558\uc911\uc744 \ub354 \ud6a8\uc728\uc801\uc73c\ub85c \uc804\ub2ec\ud569\ub2c8\ub2e4. \uc804\ub2e8 \ud558\uc911(\ubcfc\ud2b8 \ucd95\uacfc \uc218\uc9c1 \ubc29\ud5a5 \ud798)\uc774 \uc791\uc6a9\ud558\ub294 \uacbd\uc6b0, \ubc18\ub4dc\uc2dc \uc804\ub2e8\uba74\uc5d0 \uc0f9\ud06c\uac00 \uc704\uce58\ud55c \ubd80\ubd84\ub098\uc0ac 8.8 \uc721\uac01 \ubcfc\ud2b8\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p><strong>\uc804\ub098\uc0ac \uc721\uac01 \ubcfc\ud2b8<\/strong> (\ub54c\ub54c\ub85c \uc721\uac01 \ub098\uc0ac \ub610\ub294 \uc0f9\ud06c\uac00 \uc5c6\ub294 \uc138\ud2b8\uc2a4\ud06c\ub958\ub77c\uace0\ub3c4 \ubd88\ub9ac\uba70) \ud074\ub7a8\ud551 \uae38\uc774\uac00 \uc9e7\uace0 \uc811\ud569\ubd80\uac00 \uc804\uc801\uc73c\ub85c \ud074\ub7a8\ud551\ub825(\uc778\uc7a5 \ud504\ub9ac\ub85c\ub4dc)\uc5d0 \uc758\uc874\ud560 \ub54c \uc120\ud638\ub429\ub2c8\ub2e4. \uc804\ub2e8 \uc800\ud56d\uc5d0\ub294 \uc758\uc874\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uc18c\ucf13 \ud5e4\ub4dc \ucea1 \uc2a4\ud06c\ub958(SHCS) 8.8\ub4f1\uae09<\/h3>\n<p>\uc18c\ucf13 \ud5e4\ub4dc \ucea1 \uc2a4\ud06c\ub958(\uc721\uac01 \uc18c\ucf13 \uad6c\ub3d9)\ub294 8.8\ub4f1\uae09\uc73c\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \ub0b4\ubd80 \uad6c\ub3d9\ubd80\uac00 \ucea0\uc544\uc6c3\uc744 \ubc29\uc9c0\ud558\ubbc0\ub85c \ub3d9\ub4f1\ud55c \uc721\uac01 \ubcfc\ud2b8\ubcf4\ub2e4 \ub354 \ub192\uc740 \uccb4\uacb0 \ud1a0\ud06c\ub97c \ud5c8\uc6a9\ud569\ub2c8\ub2e4. \ud50c\ub7ec\uc2dc \ub610\ub294 \ub9e4\ub9bd\ud615 \uccb4\uacb0\uc774 \ud544\uc694\ud55c \uae30\uacc4, \uc9c0\uadf8, \uace0\uc815\uad6c\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h3>\ud50c\ub79c\uc9c0 \ubcfc\ud2b8 8.8\ub4f1\uae09<\/h3>\n<p>\ud50c\ub79c\uc9c0 \ubcfc\ud2b8\ub294 \uba38\ub9ac \uc544\ub798\uc5d0 \uc640\uc154\uc640 \uc720\uc0ac\ud55c \ud50c\ub79c\uc9c0\ub97c \ud1b5\ud569\ud558\uc5ec \ud074\ub7a8\ud551\ub825\uc744 \ub354 \ub113\uc740 \uba74\uc801\uc73c\ub85c \ubd84\uc0b0\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ub294 \uc5f0\uc9c8\uc758 \ubca0\uc774\uc2a4 \uc18c\uc7ac\ub098 \uc9c4\ub3d9\uc73c\ub85c \uc778\ud574 \uc77c\ubc18 \uc640\uc154\uac00 \uc6c0\uc9c1\uc77c \uc218 \uc788\ub294 \uacbd\uc6b0\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. <strong>8.8\ub4f1\uae09 \ud50c\ub79c\uc9c0 \ubcfc\ud2b8\ub294 \uc790\ub3d9\ucc28 \uc5d4\uc9c4 \ubc0f \ubc30\uae30 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ub9e4\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/strong> \uc9c4\ub3d9\uacfc \uc5f4 \uc21c\ud658\uc774 \uc9c0\uc18d\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\ub294 \uacf3\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h3>\uce90\ub9ac\uc9c0 \ubcfc\ud2b8 \ubc0f \ud50c\ub77c\uc6b0 \ubcfc\ud2b8 8.8\ub4f1\uae09<\/h3>\n<p>\uce90\ub9ac\uc9c0 \ubcfc\ud2b8(\uc0ac\uac01 \ubc29\ud68c\uc804 \ub125\uc774 \uc788\ub294 \ub465\uadfc \uba38\ub9ac)\ub294 \ud55c \uba74\uc774 \ud50c\ub7ec\uc2dc \ub610\ub294 \ub9e4\ub044\ub7ec\uc6cc\uc57c \ud558\ub294 \ubaa9\uc7ac-\uac15\ucca0 \ub610\ub294 \uac15\ucca0-\uac15\ucca0 \uc5f0\uacb0\uc5d0 8.8\ub4f1\uae09\uc73c\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc721\uac01\ud615 \ubcc0\ud615\ubcf4\ub2e4 \ub35c \uc77c\ubc18\uc801\uc774\uc9c0\ub9cc \ub18d\uae30\uacc4 \ubc0f \ud2b8\ub808\uc77c\ub7ec\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h3>\ud45c\uba74 \ub9c8\uac10 \uac00\ub2a5<\/h3>\n<table>\n<tbody>\n<tr>\n<th>\ub9c8\uac10<\/th>\n<th>\uc124\uba85<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4<\/th>\n<\/tr>\n<tr>\n<td>\ubb34\ub3c4\uae08(\uc21c\uac15)<\/td>\n<td>\ubd80\uc2dd \ubc29\uc9c0 \uc5c6\uc74c<\/td>\n<td>\uc2e4\ub0b4\uc6a9, \uc624\uc77c \uce68\uc9c0 \uae30\uacc4\ub958<\/td>\n<\/tr>\n<tr>\n<td>\uc544\uc5f0 \uc804\uae30 \ub3c4\uae08(\ud669\uc0c9 \ub610\ub294 \ubc31\uc0c9)<\/td>\n<td>\uacbd\ubbf8\ud55c \ubd80\uc2dd \uc800\ud56d<\/td>\n<td>\uc77c\ubc18 \uc6a9\ub3c4, \uc2e4\ub0b4\/\ucc28\ud3d0<\/td>\n<\/tr>\n<tr>\n<td>\uc6a9\uc735\uc544\uc5f0\ub3c4\uae08 (HDG)<\/td>\n<td>\uac15\ub825\ud55c \ubd80\uc2dd \ubc29\uc9c0<\/td>\n<td>\uc2e4\uc678 \uad6c\uc870\ubb3c, \ud574\uc548<\/td>\n<\/tr>\n<tr>\n<td>Dacromet \/ geomet<\/td>\n<td>\ubc15\ub9c9, \uc218\uc18c \ucde8\uc131 \uc704\ud5d8 \uc5c6\uc74c<\/td>\n<td>\uc790\ub3d9\ucc28, \uace0\uc751\ub825<\/td>\n<\/tr>\n<tr>\n<td>\ube14\ub799 \uc0b0\ud654\ubb3c<\/td>\n<td>\ucd5c\uc18c\ud55c\uc758 \ubcf4\ud638, \uc2a4\ud2f0\ud0b9 \uac10\uc18c<\/td>\n<td>\uc815\ubc00 \uae30\uacc4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p><strong>\ucc38\uace0:<\/strong> \ud45c\uc900 \uc804\ud574\ub3c4\uae08 8.8\uae09 \ubcfc\ud2b8\ub294 <strong>\uc218\uc18c \ucde8\uc131<\/strong> \ub3c4\uae08\uc774 \uc798\ubabb\ub420 \uacbd\uc6b0 \ucde8\uc131\uc5d0 \ucde8\uc57d\ud569\ub2c8\ub2e4. \uc548\uc804\uc774 \uc911\uc694\ud55c \uc870\uc778\ud2b8\uc5d0\ub294 \ub3c4\uae08 \ud6c4 \ubca0\uc774\ud0b9(\ucde8\uc131 \uc644\ud654)\ub41c \ud328\uc2a4\ub108\ub97c \uc9c0\uc815\ud558\uac70\ub098 Dacromet\/Geomet \ucf54\ud305\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p><\/blockquote>\n<hr \/>\n<h2>\uc0b0\uc5c5 \uc751\uc6a9 \ubc0f \uc0ac\uc6a9 \uc0ac\ub840<\/h2>\n<p>8.8\uae09 \ubcfc\ud2b8\ub294 \ub54c\ub54c\ub85c '\uc77c\uafbc \ub4f1\uae09'\uc774\ub77c\uace0 \ubd88\ub9ac\uba70, \ub300\ubd80\ubd84\uc758 \uc0b0\uc5c5\uc6a9 \uccb4\uacb0 \uc791\uc5c5\uc5d0 \ucda9\ubd84\ud788 \uac15\ud558\uc9c0\ub9cc \ub108\ubb34 \ub2e8\ub2e8\ud558\uc9c0 \uc54a\uc544 \ucde8\uc131\uc774 \uc0dd\uae30\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc5b4\ub5a4 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c\uc9c0(\ub610\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc740\uc9c0)\ub97c \uc774\ud574\ud558\uba74 \uacfc\ub3c4\ud55c \uc124\uacc4\uc640 \ubd80\uc871\ud55c \uc124\uacc4\ub97c \ub3d9\uc2dc\uc5d0 \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uc790\ub3d9\ucc28 \uacf5\ud559<\/h3>\n<p>8.8\uae09 \ubcfc\ud2b8\ub294 \uc790\ub3d9\ucc28 \uc870\ub9bd\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc5d4\uc9c4 \ube14\ub85d-\ubcc0\uc18d\uae30 \ubca8 \ud558\uc6b0\uc9d5 \ubcfc\ud2b8, \uc11c\uc2a4\ud39c\uc158 \uc11c\ube0c\ud504\ub808\uc784 \ubcfc\ud2b8, \uc2a4\ud2f0\uc5b4\ub9c1 \ub799 \ub9c8\uc6b4\ud305 \ubcfc\ud2b8, \ubc30\uae30 \ub9e4\ub2c8\ud3f4\ub4dc \uc2a4\ud130\ub4dc \ub4f1\uc774 \uc790\uc8fc 8.8\uae09\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \uaddc\uaca9\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uc774\uc720\ub85c \uc774\ub7ec\ud55c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>640 MPa\uc758 \ud56d\ubcf5 \uac15\ub3c4<\/strong> \uc5d4\uc9c4 \uc9c4\ub3d9\uacfc \ub3c4\ub85c \ucda9\uaca9\uc758 \ub3d9\uc801 \ud558\uc911\uc744 \uc601\uad6c \ubcc0\ud615 \uc5c6\uc774 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\ucd5c\uc18c \uc5f0\uc2e0\uc728 12%<\/strong> \uacfc\ub3c4\ud55c \uccb4\uacb0 \uc2dc \uc57d\uac04\uc758 \uc5f0\uc131\uc744 \ud5c8\uc6a9\ud558\uc5ec \ud604\uc7a5 \uc11c\ube44\uc2a4 \uc2dc \uc2e4\uc6a9\uc801\uc778 \uc548\uc804 \uc5ec\uc720\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \uad6c\uc870<\/strong> \uc5d4\uc9c4\ub8f8 \ud658\uacbd\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc5f4 \uc0ac\uc774\ud074\uc744 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc2e4\uc81c\ub85c, \uace0\uc628 \uc601\uc5ed(\ubc30\uae30 \ub9e4\ub2c8\ud3f4\ub4dc \ub610\ub294 \ud130\ubcf4\ucc28\uc800 \uadfc\ucc98)\uc758 8.8 \ubcfc\ud2b8\ub294 \uc815\uae30 \uc810\uac80 \uc2dc \uc751\ub825 \uc774\uc644 \uc5ec\ubd80\ub97c \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. 300\u00b0C \uc774\uc0c1\uc758 \uc628\ub3c4\uc5d0 \uc7a5\uae30\uac04 \ub178\ucd9c\ub418\uba74 \uc911\ud0c4\uc18c\uac15\uc5d0\uc11c \ud06c\ub9ac\ud504\uac00 \ubc1c\uc0dd\ud558\uc5ec \uccb4\uacb0\ub825\uc774 \uc810\ucc28 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/p>\n<h3>\uad6c\uc870\uc6a9 \uac15\ucca0 \uc5f0\uacb0\ubd80<\/h3>\n<p>\uad6c\uc870\uacf5\ud559\uc5d0\uc11c, <strong>8.8\uae09 \ubcfc\ud2b8\ub294 '\uace0\uac15\ub3c4 \uad6c\uc870\uc6a9 \ubcfc\ud2b8'\ub85c \ubd84\ub958\ub429\ub2c8\ub2e4<\/strong> Eurocode 3(EN 1993) \ubc0f \ub3d9\ub4f1 \uaddc\uaca9\uc5d0 \ub530\ub77c. \ubaa8\uba58\ud2b8 \uc811\ud569, \uc804\ub2e8 \ud0ed, \uc575\uae00 \ud074\ub9ac\ud2b8, \uc5d4\ub4dc \ud50c\ub808\uc774\ud2b8 \uc811\ud569 \ub4f1 \uad50\ub7c9, \uc0b0\uc5c5\uc6a9 \uac74\ubb3c, \uc1a1\uc804\ud0d1\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<p>\uc5d0 \ub530\ub974\uba74 <a href=\"https:\/\/www.phd.eng.br\/wp-content\/uploads\/2015\/12\/en.1993.1.8.2005.pdf\" rel=\"noopener\" target=\"_blank\">EN 1993-1-8(Eurocode 3 \u2014 \uc811\ud569 \uc124\uacc4)<\/a>, 8.8\uae09 \ubcfc\ud2b8\uc758 \uc124\uacc4 \ud504\ub9ac\ub85c\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<blockquote><p>Fp,C = 0.7 \u00d7 fub \u00d7 As<\/p><\/blockquote>\n<p>\uc5ec\uae30\uc11c fub = 800 MPa(\ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4), As = \ubcfc\ud2b8\uc758 \uc720\ud6a8 \ub2e8\uba74\uc801\uc785\ub2c8\ub2e4. M20 8.8 \ubcfc\ud2b8(As = 245 mm\u00b2)\uc758 \uacbd\uc6b0, \uc124\uacc4 \uc608\uc555\ub825\uc740 \ub300\ub7b5 <strong>137 kN<\/strong> \u2014 \uc0c1\ub2f9\ud55c \ud074\ub7a8\ud551 \ud798\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc77c\ubc18 \uae30\uacc4 \ubc0f \uc7a5\ube44 \uc81c\uc870<\/h3>\n<p>CNC \uacf5\uc791\uae30\uacc4, \uc0b0\uc5c5\uc6a9 \ud504\ub808\uc2a4, \ucee8\ubca0\uc774\uc5b4 \uc2dc\uc2a4\ud15c, \ud38c\ud504 \uc7a5\ucc29 \ud50c\ub808\uc774\ud2b8, \uae30\uc5b4\ubc15\uc2a4 \ud558\uc6b0\uc9d5 \ub4f1\uc740 8.8 \ub4f1\uae09 \ud558\ub4dc\uc6e8\uc5b4\ub97c \uc77c\uc0c1\uc801\uc73c\ub85c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uac15\ub3c4 \ub4f1\uae09\uc740 \ud558\uc911 \uc694\uad6c\uc5d0 \uc798 \ub9de\uc73c\uba70, 8.8 \ubcfc\ud2b8\ub294 M4\ubd80\ud130 M64\uae4c\uc9c0 \ub2e4\uc591\ud55c \ubbf8\ud130 \uaddc\uaca9\uc73c\ub85c \ub110\ub9ac \uad6c\ud560 \uc218 \uc788\uc5b4 \ub300\ubd80\ubd84\uc758 \uc81c\uc870 \uc791\uc5c5\uc5d0\uc11c \ubcc4\ub3c4\uc758 \uc870\ub2ec\uc774 \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\ub18d\uc5c5 \ubc0f \uac74\uc124 \uc7a5\ube44<\/h3>\n<p>\ub85c\ub354 \ud504\ub808\uc784, \ud2b8\ub799\ud130 \uc5f0\uacb0\ubd80, \ucf64\ubc14\uc778 \uc218\ud655\uae30 \ud50c\ub7ab\ud3fc, \uad74\uc0ad\uae30 \ubc84\ud0b7 \uc5b4\ud0dc\uce58\uba3c\ud2b8 \ub4f1\uc5d0\uc11c 8.8 \ubcfc\ud2b8\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. 8.8 \ub4f1\uae09\uc740 \uace0\uc8fc\uae30 \ub3d9\uc801 \ud558\uc911\uc5d0 \uc801\ud569\ud55c \uc0ac\uc591\uc774\uc9c0\ub9cc, \ud53c\ubc97 \ud540\uc774\ub098 \ub9e4\uc6b0 \ub192\uc740 \ucda9\uaca9 \ud558\uc911\uc774 \uac78\ub9ac\ub294 \uc870\uc778\ud2b8(\uc608: \uc554\uc11d \ubd84\uc1c4\uae30 \uc870 \ud06c\uae30 \uc7a5\ucc29)\uc5d0\ub294 \ubcf4\ud1b5 10.9 \ub610\ub294 12.9 \ub4f1\uae09\uc774 \uc120\ud638\ub429\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>\uc801\ud569\ud55c 8.8 \ubcfc\ud2b8 \uc120\ud0dd \ubc0f \uc9c0\uc815 \ubc29\ubc95<\/h2>\n<p>8.8 \ubcfc\ud2b8\ub97c \uc62c\ubc14\ub974\uac8c \uc120\ud0dd\ud558\ub824\uba74 \uc9c1\uacbd\ub9cc \uace0\ub974\ub294 \uac83 \uc774\uc0c1\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ub098\uc0ac\uc0b0 \ud53c\uce58, \uc0f9\ud06c \uae38\uc774, \ud5e4\ub4dc \ud615\ud0dc, \ub9c8\uac10, \uccb4\uacb0 \ud1a0\ud06c \ubaa8\ub450 \uc801\uc6a9 \uc870\uac74\uc5d0 \ub9de\uc544\uc57c \ud569\ub2c8\ub2e4. \uc774 \uc911 \ud558\ub098\ub77c\ub3c4 \uc798\ubabb \uc120\ud0dd\ud558\uba74 \uc870\uc778\ud2b8 \uc2e4\ud328\ub098 \uacfc\ub3c4\ud558\uac8c \uc124\uacc4\ub41c \ub0ad\ube44\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/productionscrews.com\/wp-content\/uploads\/2026\/05\/03-howto-22.png\" alt=\"8.8 \ubcfc\ud2b8 \u2014 \ud06c\uae30, \ub4f1\uae09, \uc801\uc6a9 \ubd84\uc57c\ubcc4 \uc120\ud0dd \uacfc\uc815\uc744 \ubcf4\uc5ec\uc8fc\ub294 \ub2e4\uc774\uc5b4\uadf8\ub7a8\" \/><\/p>\n<h3>1\ub2e8\uacc4 \u2014 \ud544\uc694\ud55c \ud074\ub7a8\ud551 \ud798 \uacb0\uc815<\/h3>\n<p>\uad00\uc2b5\uc774 \uc544\ub2cc \uc870\uc778\ud2b8 \uc694\uad6c\uc0ac\ud56d\uc5d0\uc11c \uc2dc\uc791\ud558\uc138\uc694. \ucd5c\ub300 \uc0ac\uc6a9 \ud558\uc911(\uc778\uc7a5, \uc804\ub2e8 \ub610\ub294 \ubcf5\ud569 \ud558\uc911)\uc744 \uacc4\uc0b0\ud558\uac70\ub098 \ucd94\uc815\ud55c \ud6c4 \uc548\uc804 \uacc4\uc218\ub97c \uc801\uc6a9\ud569\ub2c8\ub2e4. \uc815\uc801 \uad6c\uc870 \ud558\uc911\uc758 \uacbd\uc6b0 \uc778\uc7a5 \uc99d\uba85 \ud558\uc911\uc5d0 \ub300\ud574 2.0~2.5\uc758 \uc548\uc804 \uacc4\uc218\uac00 \uc77c\ubc18\uc801\uc785\ub2c8\ub2e4. \ub3d9\uc801 \ub610\ub294 \ud53c\ub85c \ud558\uc911\uc758 \uacbd\uc6b0 3.0~4.0\uc73c\ub85c \ub192\uc774\uace0, \ud53c\ub85c \ud30c\uc190\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ubcfc\ud2b8 \ub4f1\uae09\uc744 \ub354 \ub192\uac8c(10.9) \uc9c0\uc815\ud574\uc57c \ud558\ub294\uc9c0 \uace0\ub824\ud558\uc138\uc694.<\/p>\n<h3>2\ub2e8\uacc4 \u2014 \uc9c1\uacbd \ubc0f \ub098\uc0ac\uc0b0 \ud53c\uce58 \uc120\ud0dd<\/h3>\n<p>\ubbf8\ud130 \ubcfc\ud2b8\ub294 <strong>\uad75\uc740 \ud53c\uce58(\ud45c\uc900)<\/strong> \ubc0f <strong>\uac00\ub294 \ud53c\uce58<\/strong> \ubcc0\ud615\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uad75\uc740 \ub098\uc0ac\uc0b0\uc740 \ub300\ubd80\ubd84\uc758 \uad6c\uc870 \ubc0f \uae30\uacc4 \uc801\uc6a9\uc5d0 \ud45c\uc900\uc73c\ub85c \uc0ac\uc6a9\ub418\uba70, \uc624\uc5fc\uc5d0 \ub354 \uac15\ud558\uace0 \uc870\ub9bd\uc774 \uc27d\uc2b5\ub2c8\ub2e4. \uac00\ub294 \ub098\uc0ac\uc0b0\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc120\ud638\ub429\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\ud074\ub7a8\ud551 \uae38\uc774\uac00 \ub9e4\uc6b0 \uc9e7\uc744 \ub54c(\uac00\ub294 \ub098\uc0ac\uc0b0\uc774 \ud1a0\ud06c-\uc608\uc555 \uc81c\uc5b4\uc5d0 \uc720\ub9ac\ud568)<\/li>\n<li>\uc870\ub9bd\uccb4\uc5d0 \uc9c4\ub3d9\uc774 \uc2ec\ud560 \ub54c(\uac00\ub294 \ub098\uc0ac\uc0b0\uc774 \ub098\uc120\uac01 \ub9c8\ucc30\uc774 \ub354 \ub192\uc74c)<\/li>\n<li>\uc7ac\uc9c8\uc774 \uc587\uac70\ub098 \ubd80\ub4dc\ub7ec\uc6b8 \ub54c(\uac00\ub294 \ub098\uc0ac\uc0b0\uc774 \ub098\uc0ac\uc0b0 \ud30c\uc190 \uc704\ud5d8\uc744 \uc904\uc784)<\/li>\n<\/ul>\n<p><strong>\uc77c\ubc18\uc801\uc778 8.8 \ubcfc\ud2b8 \ud06c\uae30\uc640 \ud574\ub2f9 \ubbf8\ud130\uacc4 \uac70\uce5c \ub098\uc0ac \ud53c\uce58:<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<th>\uc9c1\uacbd<\/th>\n<th>\ub098\uc0ac \ud53c\uce58 (\uac70\uce5c)<\/th>\n<th>\uc751\ub825 \uba74\uc801 (mm\u00b2)<\/th>\n<th>\uc99d\uba85 \ud558\uc911 (kN)<\/th>\n<\/tr>\n<tr>\n<td>M6<\/td>\n<td>1.0 mm<\/td>\n<td>20.1<\/td>\n<td>11.4<\/td>\n<\/tr>\n<tr>\n<td>M8<\/td>\n<td>1.25 mm<\/td>\n<td>36.6<\/td>\n<td>20.7<\/td>\n<\/tr>\n<tr>\n<td>M10<\/td>\n<td>1.5 mm<\/td>\n<td>58.0<\/td>\n<td>32.8<\/td>\n<\/tr>\n<tr>\n<td>M12<\/td>\n<td>1.75 mm<\/td>\n<td>84.3<\/td>\n<td>47.7<\/td>\n<\/tr>\n<tr>\n<td>M16<\/td>\n<td>2.0 mm<\/td>\n<td>157<\/td>\n<td>88.8<\/td>\n<\/tr>\n<tr>\n<td>M20<\/td>\n<td>2.5 mm<\/td>\n<td>245<\/td>\n<td>138.6<\/td>\n<\/tr>\n<tr>\n<td>M24<\/td>\n<td>3.0 mm<\/td>\n<td>353<\/td>\n<td>199.7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>3\ub2e8\uacc4 \u2014 \uccb4\uacb0 \ud1a0\ud06c \uacc4\uc0b0<\/h3>\n<p>8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc758 \ud45c\uc900 \uccb4\uacb0 \ud1a0\ud06c(\uc57d 70%\uc758 \uc99d\uba85 \ud558\uc911 \ub2ec\uc131)\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ucd94\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p><strong>T \u2248 K \u00d7 d \u00d7 F<\/strong><\/p>\n<p>\uc5ec\uae30\uc11c K\ub294 \ud1a0\ud06c \uacc4\uc218(\uc724\ud65c\ub41c \ub098\uc0ac\uc758 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c 0.20, \uac74\uc870\ud55c \ub098\uc0ac\uc758 \uacbd\uc6b0 0.22), d\ub294 \uba85\ubaa9 \uc9c1\uacbd(m), F\ub294 \ubaa9\ud45c \uc608\uc555(N)\uc785\ub2c8\ub2e4. \uac74\uc870\ud55c \ub098\uc0ac\uc758 M12 8.8 \ubcfc\ud2b8\uc758 \uacbd\uc6b0:<\/p>\n<p>T \u2248 0.22 \u00d7 0.012 m \u00d7 47,700 N \u2248 <strong>126 N\u00b7m<\/strong><\/p>\n<p>\ud56d\uc0c1 \uccb4\uacb0 \uc81c\uc870\uc0ac\uc758 \uacf5\uc2dd \ud1a0\ud06c \ud45c\ub97c \ucc38\uace0\ud558\uc138\uc694 \u2014 K \uac12\uc740 \ub098\uc0ac \uc0c1\ud0dc, \uc640\uc154 \uc720\ubb34, \uc724\ud65c\uc81c \uc885\ub958\uc5d0 \ub530\ub77c \ud06c\uac8c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n<h3>4\ub2e8\uacc4 \u2014 \uc62c\ubc14\ub978 \uae38\uc774 \uc120\ud0dd<\/h3>\n<p><strong>\ubcfc\ud2b8 \uae38\uc774\ub294 \uc870\uc784 \ud6c4 \ub108\ud2b8 \ub108\uba38\ub85c \uc644\uc804\ud788 \ud615\uc131\ub41c \ub098\uc0ac\uac00 \ucd5c\uc18c 1~1.5 \ud53c\uce58\ub9cc\ud07c \uc5f0\uc7a5\ub418\uc5b4\uc57c \ucda9\ubd84\ud788 \uae38\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/strong> \ub108\ubb34 \uc9e7\uc73c\uba74 \ub108\ud2b8\uac00 \ubd88\uc644\uc804\ud55c \ub098\uc0ac \ub05d\uc5d0 \uac78\ub824 \uccb4\uacb0 \ud6a8\uacfc\uac00 \uac10\uc18c\ud569\ub2c8\ub2e4. \ub108\ubb34 \uae38\uba74 \uc7ac\ub8cc\uac00 \ub0ad\ube44\ub418\uace0 \uc778\uc811 \ubd80\ud488\uacfc \uac04\uc12d\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ud0ed\ud640 \uc801\uc6a9 \uc2dc, \ub098\uc0ac \ub9de\ubb3c\ub9bc \uae38\uc774\ub294 \uac15\ucca0\uc5d0\uc11c\ub294 \ubcfc\ud2b8 \uc9c1\uacbd\uc758 \ucd5c\uc18c 1\ubc30, \uc54c\ub8e8\ubbf8\ub284\uc5d0\uc11c\ub294 1.5\ubc30, \uc8fc\ucca0\uc774\ub098 \uc5f0\uc9c8 \uc18c\uc7ac\uc5d0\uc11c\ub294 2\ubc30 \uc774\uc0c1\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>\ud53c\ud574\uc57c \ud560 \uc77c\ubc18\uc801\uc778 \uc120\ud0dd \uc2e4\uc218<\/h3>\n<ul>\n<li><strong>\ubbf8\ud130\uacc4\uc640 \uc778\uce58\uacc4 \ud63c\uc6a9:<\/strong> 8.8 \ub4f1\uae09\uc740 \ubbf8\ud130\uacc4 \ud45c\uae30\uc785\ub2c8\ub2e4. SAE Grade 5 \ub610\ub294 Grade 8\uacfc \uc9c1\uc811\uc801\uc73c\ub85c \ub300\uc751\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4(Grade 8\uc740 \uc778\uc7a5 \uac15\ub3c4\uc5d0\uc11c \ub300\ub7b5 \ube44\uc2b7\ud568 \u2014 \uc544\ub798\uc5d0\uc11c \uc790\uc138\ud788 \uc124\uba85).<\/li>\n<li><strong>\ud0ed\ud640\uc5d0\uc11c \ub098\uc0ac \ud53c\uce58 \ubb34\uc2dc:<\/strong> M10 \u00d7 1.25 \ubbf8\uc138 \ud53c\uce58 \ubcfc\ud2b8\ub97c M10 \u00d7 1.5 \uac70\uce5c \ud53c\uce58 \ud0ed \ud640\uc5d0 \uc0bd\uc785\ud558\uba74 \ub450 \ubd80\ud488 \ubaa8\ub450 \uc190\uc0c1\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\ud1a0\ud06c-\ud22c-\uc77c\ub4dc \ubcfc\ud2b8 \uc7ac\uc0ac\uc6a9:<\/strong> \ub9ce\uc740 \ucd5c\uc2e0 \ud5e4\ub4dc \ubcfc\ud2b8\uc640 \uc548\uc804\uc5d0 \uc911\uc694\ud55c \uad6c\uc870 \ubcfc\ud2b8\ub294 \ud56d\ubcf5\uc810\uc744 \ub118\ub3c4\ub85d \ud1a0\ud06c\ub97c \uc801\uc6a9\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubcfc\ud2b8\ub294 \uc808\ub300 \uc7ac\uc0ac\uc6a9\ud574\uc11c\ub294 \uc548 \ub418\uba70, \uc81c\uac70 \ud6c4 \ubc18\ub4dc\uc2dc \ud3d0\uae30\ud558\uace0 \uad50\uccb4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc218\uc18c \ucde8\uc131 \ud658\uacbd\uc5d0\uc11c \uc804\uae30 \ub3c4\uae08\ub41c 8.8 \uc0ac\uc6a9:<\/strong> \uace0\uac15\ub3c4 \ud328\uc2a4\ub108\uc758 \uc804\uae30 \ub3c4\uae08\uc740 \uc218\uc18c \ud761\uc218 \uc704\ud5d8\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4. \uc0b0\uc131 \ub610\ub294 \uc74c\uadf9 \ubcf4\ud638 \ud658\uacbd\uc5d0\uc11c\ub294 \uc9c0\uc624\uba54\ud2b8 \ub610\ub294 \ub2e4\ud06c\ub85c\uba54\ud2b8 \ucf54\ud305\uc744 \uc0ac\uc6a9\ud558\uc138\uc694.<\/li>\n<\/ul>\n<hr \/>\n<h2>8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc640 \ub2e4\ub978 \ubcfc\ud2b8 \ub4f1\uae09 \ube44\uad50<\/h2>\n<p>8.8 \ub4f1\uae09\uc774 \ud328\uc2a4\ub108 \uac15\ub3c4 \uacc4\uce35\uc5d0\uc11c \uc5b4\ub514\uc5d0 \uc704\uce58\ud558\ub294\uc9c0 \uc774\ud574\ud558\uba74, \uacfc\uc18c \uc0ac\uc591\uc744 \ud53c\ud558\uace0 8.8\ub85c \ucda9\ubd84\ud560 \ub54c \uac12\ube44\uc2fc \uace0\ub4f1\uae09 \ud558\ub4dc\uc6e8\uc5b4\ub97c \uacfc\ub3c4\ud558\uac8c \uc0ac\uc591\ud558\ub294 \uc720\ud639\uc744 \uc800\ud56d\ud558\ub294 \ub4f1 \ub354 \ub098\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uacb0\uc815\uc744 \ub0b4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>8.8 \ub4f1\uae09 vs 10.9 \ub4f1\uae09<\/h3>\n<p>10.9 \ubcfc\ud2b8\ub294 \uc778\uc7a5 \uac15\ub3c4 1040 MPa, \ud56d\ubcf5 \uac15\ub3c4 940 MPa\ub85c, 8.8\ubcf4\ub2e4 \uc57d 17% \ub354 \ub192\uc740 \uc778\uc7a5 \uac15\ub3c4\uc640 47% \ub354 \ub192\uc740 \ud56d\ubcf5 \uac15\ub3c4\ub97c \uac00\uc9d1\ub2c8\ub2e4. \ud504\ub9ac\ub85c\ub4dc\uac00 \uc8fc\uc694 \ud558\uc911 \uc804\ub2ec \uba54\ucee4\ub2c8\uc998\uc778 \uc870\uc778\ud2b8(\ub9c8\ucc30\ud615 \uc5f0\uacb0, \ub0b4\ubd80 \uc555\ub825 \ud558\uc758 \ud50c\ub79c\uc9c0 \uc870\uc778\ud2b8)\uc5d0\uc11c\ub294 \ub3d9\uc77c\ud55c \ud074\ub7a8\ud551\ub825\uc744 \uc704\ud574 \ub354 \uc791\uc740 \ubcfc\ud2b8 \uc9c1\uacbd\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc5b4 \ubb34\uac8c\uc640 \uacf5\uac04\uc744 \uc808\uc57d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ud558\uc9c0\ub9cc 10.9 \ubcfc\ud2b8\ub294 <strong>\uc124\uce58 \uc624\ub958\uc5d0 \ub35c \uad00\ub300\ud569\ub2c8\ub2e4<\/strong>. \ub354 \ub192\uc740 \uacbd\ub3c4(HRC 32\u201339)\uc5d0\uc11c\ub294 \uc218\uc18c \ucde8\uc131\uacfc \uc751\ub825 \ubd80\uc2dd \uade0\uc5f4\uc5d0 \ub354 \ucde8\uc57d\ud569\ub2c8\ub2e4. \ubd80\uc2dd \ud658\uacbd\uc5d0\uc11c\ub294 \ud45c\uba74 \ubcf4\ud638\uac00 \ubbf8\ud761\ud55c 10.9 \ubcfc\ud2b8\uac00 \uac11\uc790\uae30 \ud30c\uc190\ub420 \uc218 \uc788\uc73c\uba70, \ub3d9\uc77c\ud55c \ud658\uacbd\uc758 8.8 \ubcfc\ud2b8\ub294 \uba3c\uc800 \ub208\uc5d0 \ub744\ub294 \ub179\uacfc \ub290\ub9b0 \uc5f4\ud654\ub97c \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>8.8 \ub4f1\uae09 vs 12.9 \ub4f1\uae09<\/h3>\n<p>12.9 \ub4f1\uae09(\uc778\uc7a5 \uac15\ub3c4 1220 MPa, \ud56d\ubcf5 \uac15\ub3c4 1100 MPa)\uc740 \uc911\ub7c9 \uac10\uc18c\uac00 \uc911\uc694\ud558\uace0 \uc870\ub9bd\uc774 \ud1b5\uc81c\ub418\ub294 \ud56d\uacf5\uc6b0\uc8fc, \ubaa8\ud130\uc2a4\ud3ec\uce20, \ud504\ub9ac\ubbf8\uc5c4 \uae30\uacc4\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub2e8\uc810\uc740 12.9 \ubcfc\ud2b8\uac00 \ud6e8\uc52c \ube44\uc2f8\uace0, \ubc18\ub4dc\uc2dc \uad50\uc815\ub41c \ub3c4\uad6c\ub85c \uc870\ub9bd\ud574\uc57c \ud558\uba70, \ubd80\uc2dd\uacfc \uc218\uc18c \ucde8\uc131\uc5d0 \ub9e4\uc6b0 \ubbfc\uac10\ud558\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uc5c4\uaca9\ud55c \ud488\uc9c8 \uad00\ub9ac \uc5c6\uc774 \ud604\uc7a5 \uc870\ub9bd\ub418\ub294 \uac74\uc124\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>8.8 \ub4f1\uae09 vs SAE Grade 8(\uc784\ud398\ub9ac\uc5bc)<\/h3>\n<p>\uac00\uc7a5 \ud754\ud55c \ube44\uad50 \uc9c8\ubb38\uc785\ub2c8\ub2e4. \uc9c1\uc811 \ube44\uad50\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<table>\n<tbody>\n<tr>\n<th>\uc18d\uc131<\/th>\n<th>8.8 \ub4f1\uae09(\ubbf8\ud130\ubc95)<\/th>\n<th>SAE Grade 8(\uc784\ud398\ub9ac\uc5bc)<\/th>\n<\/tr>\n<tr>\n<td>\uc778\uc7a5 \uac15\ub3c4<\/td>\n<td>800 MPa(116 ksi)<\/td>\n<td>150 ksi(1034 MPa)<\/td>\n<\/tr>\n<tr>\n<td>\ud56d\ubcf5 \uac15\ub3c4<\/td>\n<td>640 MPa (92.8 ksi)<\/td>\n<td>130 ksi (896 MPa)<\/td>\n<\/tr>\n<tr>\n<td>\ud655\uc778 \ud558\uc911<\/td>\n<td>~600 MPa<\/td>\n<td>120 ksi (827 MPa)<\/td>\n<\/tr>\n<tr>\n<td>\ud45c\uc900<\/td>\n<td>ISO 898-1<\/td>\n<td>SAE J429<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Grade 8\ub294 class 8.8\ubcf4\ub2e4 \uc758\ubbf8 \uc788\uac8c \ub354 \uac15\ud569\ub2c8\ub2e4.<\/strong> \u2014 \uc778\uc7a5 \uac15\ub3c4\ub294 \uc57d 29% \ub354 \ub192\uace0, \ud56d\ubcf5 \uac15\ub3c4\ub294 40% \ub354 \ub192\uc2b5\ub2c8\ub2e4. \uc774\ub4e4\uc740 <strong>\ud638\ud658\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4<\/strong>. \ubbf8\ud130 \ub098\uc0ac \uad6c\uba4d\uc5d0 Grade 8 \ubcfc\ud2b8\ub97c \uc0ac\uc6a9\ud558\uba74 \ub098\uc0ac\uac00 \uc5c7\uac08\ub824 \uc2e4\ud328\ud569\ub2c8\ub2e4; Grade 8\uc774 \uc694\uad6c\ub418\ub294 \uacf3\uc5d0 class 8.8 \ubcfc\ud2b8\ub97c \ub300\uccb4\ud558\uba74 \uac15\ub3c4\uac00 \ubd80\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud56d\uc0c1 \uc0ac\uc591\uc744 \ub9de\ucd94\uc5b4\uc57c \ud558\uba70, \uc678\uad00\ub9cc \ubcf4\uace0 \ud310\ub2e8\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<h3>Class 8.8 vs SAE Grade 5 (\uc784\ud398\ub9ac\uc5bc)<\/h3>\n<p>Grade 5 (\uc778\uc7a5 120 ksi \/ \ud56d\ubcf5 92 ksi)\ub294 \uc778\uc7a5\uc5d0\uc11c\ub294 class 8.8\ubcf4\ub2e4 \uc57d\uac04 \uac15\ud558\uc9c0\ub9cc \ud56d\ubcf5\uc5d0\uc11c\ub294 \uc57d\ud569\ub2c8\ub2e4. \uc2e4\ubb34\uc801\uc73c\ub85c \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \ube44\uacf5\uc2dd \ud3c9\uac00\uc5d0\uc11c \uc774\ub4e4\uc744 \ub3d9\ub4f1\ud558\uac8c \ucde8\uae09\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc9c0\ub9cc, \ub3d9\uc77c\ud55c \uc870\uc778\ud2b8\uc5d0 \ud63c\uc6a9\ud574\uc11c\ub294 \uc548 \ub418\uba70, \ubbf8\ud130\/\uc784\ud398\ub9ac\uc5bc \ub098\uc0ac \ud53c\uce58 \ucc28\uc774\ub85c \uc778\ud574 \ub098\uc0ac \uad6c\uba4d\uc5d0\uc11c \ubb3c\ub9ac\uc801\uc73c\ub85c \ud638\ud658\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/en.wikipedia.org\/wiki\/ISO_metric_screw_thread\" rel=\"noopener\" target=\"_blank\">ISO \ubbf8\ud130 \ub098\uc0ac\uc5d0 \ub300\ud55c \uc704\ud0a4\ubc31\uacfc \uae30\uc0ac\uc5d0\uc11c<\/a> \uc124\uba85\ud558\ub4ef, \ubbf8\ud130\uc640 \uc720\ub2c8\ud30c\uc774\ub4dc \uc778\uce58 \ub098\uc0ac \ud615\ud0dc\ub294 \ud504\ub85c\ud30c\uc77c\uacfc \ud53c\uce58\uac00 \ub2ec\ub77c \uc548\uc804\ud558\uac8c \uad50\ud658\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>\uace0\uac15\ub3c4 \ud328\uc2a4\ub108 \uae30\uc220\uc758 \ubbf8\ub798 \ub3d9\ud5a5 (2026+)<\/h2>\n<p>8.8 \ubcfc\ud2b8\ub294 \uc218\uc2ed \ub144\uac04 \uc0b0\uc5c5 \ud45c\uc900\uc774\uc5c8\uc9c0\ub9cc, \ud328\uc2a4\ub108 \uc0b0\uc5c5\uc740 \uc9c4\ud654\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc2dc\uc7a5\uc758 \ubc29\ud5a5\uc744 \uc774\ud574\ud558\uba74 \uad6c\ub9e4 \ubc0f \uc124\uacc4 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uc0ac\uc591 \ubcc0\ud654\uc640 \uc18c\uc7ac \ud601\uc2e0\uc744 \uc608\uce21\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n<h3>\uc218\uc18c \ucde8\uc131 \ubc29\uc9c0 \ucf54\ud305<\/h3>\n<p>class 8.8 \ubc0f \uadf8 \uc774\uc0c1 \ub4f1\uae09 \ud328\uc2a4\ub108\uc758 \uac00\uc7a5 \ud070 \uae30\uc220\uc801 \uacfc\uc81c\ub294 \uc804\uae30 \ub3c4\uae08 \uc911 \ubc1c\uc0dd\ud558\ub294 \uc218\uc18c \ucde8\uc131(HE)\uc785\ub2c8\ub2e4. \uc5c5\uacc4\ub294 <strong>\uc0bc\uac00 \ud06c\ub86c \uacf5\uc815(TCP) \ub3c4\uae08<\/strong> \ubc0f <strong>\uae30\uacc4\uc801 \uc544\uc5f0 \ub3c4\uae08<\/strong> (\uc544\uc5f0 \ubd84\ub9d0\uc744 \ub0c9\uac04 \uc6a9\uc811\ud558\uc5ec \uc218\uc18c\ub97c \ub3c4\uc785\ud558\uc9c0 \uc54a\uc74c). \uc774\uc5d0 \ub530\ub974\uba74 <a href=\"https:\/\/www.indfast.org\/\" rel=\"noopener\" target=\"_blank\">\uad6d\uc81c \ud328\uc2a4\ub108 \ud611\ud68c(IFI)<\/a>HE \uad00\ub828 \uacb0\ud568\uc740 \ud604\uc7a5\uc5d0\uc11c \uace0\uac15\ub3c4 \ubcfc\ud2b8 \uc2e4\ud328\uc758 \uc0c1\ub2f9 \ube44\uc728\uc744 \ucc28\uc9c0\ud558\uba70, \uc0b0\uc5c5 \ud45c\uc900\uc740 \ucde8\uc131 \uc2dc\ud5d8 \uc694\uad6c\uc0ac\ud56d\uc744 \uac15\ud654\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>2026\u20132027\ub144\uae4c\uc9c0 ASTM F3125\uc640 ISO 4042\uc758 \uc0c8\ub85c\uc6b4 \ubc84\uc804\uc5d0\ub294 8.8 \ub4f1\uae09 \uc774\uc0c1\uc758 \ud328\uc2a4\ub108\uc5d0 \ub300\ud574 \ubc18\ub4dc\uc2dc \ubca0\uc774\ud06c \ub9b4\ub9ac\ud504 \uc2dc\ud5d8\uc774 \ud3ec\ud568\ub420 \uac83\uc73c\ub85c \uc608\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n<h3>\uc2a4\ub9c8\ud2b8 \ud328\uc2a4\ub108 \ubc0f \ub0b4\uc7a5 \uc13c\uc11c<\/h3>\n<p>\uad50\ub7c9, \ud48d\ub825 \ud130\ube48, \ud574\uc0c1 \ud50c\ub7ab\ud3fc\uc758 \uad6c\uc870 \uac74\uac15 \ubaa8\ub2c8\ud130\ub9c1(SHM) \uc2dc\uc2a4\ud15c\uc740 \uc810\uc810 \ub354 \uc13c\uc11c \uae30\uc220\uc744 \ubcfc\ud2b8\uc5d0 \uc9c1\uc811 \ub0b4\uc7a5\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc555\uc804 \uc640\uc154\uc640 \ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c\uac00 \uc7a5\ucc29\ub41c \ubcfc\ud2b8\ub294 \ubd84\ud574 \uc5c6\uc774 \uc2e4\uc2dc\uac04 \uc7a5\ub825 \ubaa8\ub2c8\ud130\ub9c1\uc744 \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4. 8.8 \ub4f1\uae09\uc740 \uc8fc\uc694 \uad6c\uc870\uc6a9 \ubcfc\ud2b8 \ub4f1\uae09\uc73c\ub85c, \uc774\ub7ec\ud55c \uc2a4\ub9c8\ud2b8 \ud328\uc2a4\ub108 \uac1c\ubc1c\uc758 \uc8fc\uc694 \ud50c\ub7ab\ud3fc\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc9c0\uc18d \uac00\ub2a5\ud55c \ud328\uc2a4\ub108 \uc81c\uc870<\/h3>\n<p>8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc758 \uc6a9\uc735 \uc544\uc5f0 \ub3c4\uae08\uc740 \uc544\uc5f0 \uc99d\uae30\uc640 \uc0b0\uc131 \ud3d0\uae30\ubb3c\uc744 \ubc1c\uc0dd\uc2dc\ud0a4\uba70, \uc774\ub294 \ud658\uacbd\uc801 \ubd80\ub2f4\uc73c\ub85c \uc778\ud574 <strong>\uc5f4 \ud655\uc0b0 \uc544\uc5f0 \ub3c4\uae08(\uc154\ub7ec\ub2e4\uc774\uc9d5)<\/strong> \ubc0f <strong>\uc544\uc5f0 \ud50c\ub808\uc774\ud06c \ucf54\ud305<\/strong> (\uc9c0\uc624\uba67, \ub2e4\ud06c\ub85c\uba67)\uacfc \uac19\uc740 \ub300\uccb4 \uacf5\ubc95\uc758 \ub3c4\uc785\uc744 \ucd09\uc9c4\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub300\uccb4 \uacf5\ubc95\uc740 HDG\uc640 \ub3d9\ub4f1\ud558\uac70\ub098 \ub354 \ub6f0\uc5b4\ub09c \ub0b4\uc2dd\uc131\uc744 \uc81c\uacf5\ud558\uba74\uc11c \uacf5\uc815 \ud3d0\uae30\ubb3c\uacfc \uc720\ud574 \ubc30\ucd9c\uc744 \ud06c\uac8c \uc904\uc785\ub2c8\ub2e4.<\/p>\n<p>\uad6c\ub9e4\ud300\uc744 \uc704\ud55c \uc548\ub0b4: 2025\u20132027\ub144\uae4c\uc9c0 \uc544\uc5f0 \ud50c\ub808\uc774\ud06c \ucf54\ud305\uc774 \uc801\uc6a9\ub41c 8.8 \ub4f1\uae09 \ud328\uc2a4\ub108\ub294 \uae30\uc874 \uc804\uae30 \ub3c4\uae08 \uc81c\ud488\ubcf4\ub2e4 \uc57d\uac04 \ub192\uc740 \uac00\uaca9\uc774 \ucc45\uc815\ub420 \uc218 \uc788\uc73c\ub098, \uc11c\ube44\uc2a4 \uc218\uba85\uacfc \uc720\uc9c0\ubcf4\uc218 \uc8fc\uae30\ub97c \uace0\ub824\ud558\uba74 \ucd1d \uc18c\uc720 \ube44\uc6a9\uc740 \uc2e0\ud615 \ucf54\ud305\uc774 \ub354 \uc720\ub9ac\ud55c \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>FAQ: 8.8 \ub4f1\uae09 \ubcfc\ud2b8 \u2014 \uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<p><strong>\ubcfc\ud2b8\uc5d0 8.8\uc774\ub780 \ubb34\uc5c7\uc744 \uc758\ubbf8\ud558\ub098\uc694?<\/strong> \ubcfc\ud2b8 \uba38\ub9ac\uc5d0 \ucc0d\ud78c \u201c8.8\u201d\uc740 ISO \ub4f1\uae09 \ucf54\ub4dc\uc785\ub2c8\ub2e4. \uccab \ubc88\uc9f8 \u201c8\u201d\uc740 \uc778\uc7a5 \uac15\ub3c4 800 MPa\ub97c \uc758\ubbf8\ud558\uba70, \ub450 \ubc88\uc9f8 \u201c8\u201d\uc740 \ud56d\ubcf5 \uac15\ub3c4\uac00 \uadf8 80%(640 MPa)\uc784\uc744 \ub73b\ud569\ub2c8\ub2e4. \ubcfc\ud2b8\uc758 \uc9c1\uacbd\uc774\ub098 \ub098\uc0ac \ud53c\uce58\uc640\ub294 \uad00\ub828\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>8.8 \ubcfc\ud2b8\uc640 Grade 8 \ubcfc\ud2b8\uac00 \uac19\uc740\uac00\uc694?<\/strong> \uc544\ub2d9\ub2c8\ub2e4. SAE Grade 8(\uc784\ud398\ub9ac\uc5bc)\uc740 \uc778\uc7a5 \uac15\ub3c4 1034 MPa(150 ksi)\ub85c, 8.8 \ub4f1\uae09\uc758 800 MPa\ubcf4\ub2e4 \uc57d 29% \ub354 \uac15\ud569\ub2c8\ub2e4. \uc11c\ub85c \ub2e4\ub978 \ud45c\uc900(ISO vs. SAE)\uc774\uba70, \ub098\uc0ac\ub3c4 \ubb3c\ub9ac\uc801\uc73c\ub85c \ud638\ud658\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uacb0\ud569\ubd80\uc5d0\uc11c \uc11c\ub85c \ub300\uccb4 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n<p><strong>8.8 \ubcfc\ud2b8\uc758 \uc870\uc784 \ud1a0\ud06c\ub294 \uc5bc\ub9c8\uc778\uac00\uc694?<\/strong> \uc9c1\uacbd\uacfc \uc724\ud65c \uc0c1\ud0dc\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4. \uae30\ubcf8\uac12: M10 8.8 = \uc57d 47 N\u00b7m(\uac74\uc870), M12 8.8 = \uc57d 81 N\u00b7m(\uac74\uc870), M16 8.8 = \uc57d 200 N\u00b7m(\uac74\uc870). \ud56d\uc0c1 \ud328\uc2a4\ub108 \uc81c\uc870\uc0ac\uc758 \uacf5\uc2dd \ud1a0\ud06c \ud45c\ub97c \ucc38\uace0\ud558\uace0, \uc724\ud65c\uc81c\ub97c \uace0\ub824\ud558\uc138\uc694. \uc624\uc77c\uc774 \ubb3b\uc740 \ub098\uc0ac\ub294 \ud1a0\ud06c\uac00 20\u201330% \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>\ubcfc\ud2b8 \uc0ac\uc774\uc988\uc5d0 8.8\uc774\ub780 \ubb34\uc5c7\uc744 \uc758\ubbf8\ud558\ub098\uc694 \u2014 \uc9c1\uacbd\uc744 \ub098\ud0c0\ub0b4\ub098\uc694?<\/strong> \uc544\ub2c8\uc694 \u2014 \u201c8.8\u201d\uc740 \uac15\ub3c4 \ub4f1\uae09\ub9cc\uc744 \uc758\ubbf8\ud558\uba70, \uc0ac\uc774\uc988\uc640\ub294 \ubb34\uad00\ud569\ub2c8\ub2e4. \ubcfc\ud2b8 \uc0ac\uc774\uc988\ub294 \uc9c1\uacbd\uacfc \ud53c\uce58\ub85c \ubcc4\ub3c4 \ud45c\uae30\ub429\ub2c8\ub2e4(\uc608: M10 \u00d7 1.5). M6\uc640 M24 \ubaa8\ub450 8.8 \ub4f1\uae09\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>8.8 \ubcfc\ud2b8\ub294 \ubbf8\ud130 \uaddc\uaca9\uc778\uac00\uc694, \uc544\ub2c8\uba74 \uc778\uce58(\uc784\ud398\ub9ac\uc5bc) \uaddc\uaca9\uc778\uac00\uc694?<\/strong> 8.8 \ub4f1\uae09\uc740 ISO 898-1\uc5d0 \ub530\ub77c \uc5c4\uaca9\ud788 \ubbf8\ud130 \uaddc\uaca9\uc73c\ub85c \uc9c0\uc815\ub429\ub2c8\ub2e4. \uc9c1\uc811\uc801\uc778 \uc784\ud398\ub9ac\uc5bc \ub4f1\uae09\uc740 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uac15\ub3c4 \uae30\uc900\uc73c\ub85c \uac00\uc7a5 \uac00\uae4c\uc6b4 \uc784\ud398\ub9ac\uc5bc \ub4f1\uae09\uc740 SAE Grade 5\uc774\uc9c0\ub9cc, \ud56d\ubcf5 \uac15\ub3c4\ub294 Grade 8\uc774 \ub354 \uac00\uae5d\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>8.8 \ubcfc\ud2b8\ub97c \uc7ac\uc0ac\uc6a9\ud560 \uc218 \uc788\ub098\uc694?<\/strong> \ub300\ubd80\ubd84\uc758 \uc77c\ubc18 \uc6a9\ub3c4\uc5d0\uc11c\ub294 \ubcfc\ud2b8\uc5d0 \ub208\uc5d0 \ub744\ub294 \uc190\uc0c1, \uae01\ud798, \ubcc0\ud615\uc774 \uc5c6\uace0 \ud56d\ubcf5\uc810\uc744 \ucd08\uacfc\ud558\uc5ec \uacfc\ub3c4\ud558\uac8c \uc870\uc5ec\uc9c0\uc9c0 \uc54a\uc558\ub2e4\uba74 \uc7ac\uc0ac\uc6a9\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 '\ud1a0\ud06c \ud22c \ud56d\ubcf5' \ubcfc\ud2b8(\uc5d4\uc9c4 \ud5e4\ub4dc \ubcfc\ud2b8\uc5d0 \ud754\ud568)\ub294 \uc678\uad00\uc0c1 \uc0c1\ud0dc\uc640 \uad00\uacc4\uc5c6\uc774 \uc808\ub300 \uc7ac\uc0ac\uc6a9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<p><strong>8.8 \ubcfc\ud2b8\uc758 \uc804\ub2e8 \uac15\ub3c4\ub294 \uc5bc\ub9c8\uc778\uac00\uc694?<\/strong> \uc804\ub2e8 \uac15\ub3c4\ub294 ISO 898-1\uc5d0\uc11c \uc9c1\uc811\uc801\uc73c\ub85c \uba85\uc2dc\ub418\uc5b4 \uc788\uc9c0 \uc54a\uc73c\ub098, \uc77c\ubc18\uc801\uc778 \uacf5\ud559\uc801 \uadfc\uc0ac\uce58\ub294 \uc778\uc7a5 \uac15\ub3c4\uc758 \uc57d 60%\uc785\ub2c8\ub2e4. 8.8 \ub4f1\uae09\uc758 \uacbd\uc6b0 \ub300\ub7b5 <strong>480 MPa\uc758 \uc804\ub2e8 \uac15\ub3c4<\/strong>\uc785\ub2c8\ub2e4. M10 8.8(\uc720\ud6a8 \ub2e8\uba74\uc801 58 mm\u00b2)\uc758 \uacbd\uc6b0, \ucd94\uc815 \uc804\ub2e8 \uc6a9\ub7c9\uc740 \uc57d 27.8 kN\uc785\ub2c8\ub2e4. \ubca0\uc5b4\ub9c1 \ud0c0\uc785 \uc5f0\uacb0\uc5d0\uc11c\ub294 \uc751\ub825 \ub2e8\uba74\uc801\uc774 \uc544\ub2cc \uc804\ub2e8 \uba74\uc801(\ubab8\ud1b5 \ub2e8\uba74\uc801, \u03c0\/4 \u00d7 d\u00b2)\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/productionscrews.com\/wp-content\/uploads\/2026\/05\/04-closing-26.png\" alt=\"8.8 \ubcfc\ud2b8 \u2014 \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c \ub2e4\uc591\ud55c \ubbf8\ud130 \uaddc\uaca9 8.8 \ub4f1\uae09 \ud328\uc2a4\ub108\ub97c \ubcf4\uc5ec\uc8fc\ub294 \ub9c8\ubb34\ub9ac \uc2dc\uac01 \uc790\ub8cc\" \/><\/p>\n<hr \/>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc77c\ubc18\uc801\uc73c\ub85c <strong>8.8 \ubcfc\ud2b8<\/strong> 8.8 \ubcfc\ud2b8\ub294 \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c \ub2e4\ubaa9\uc801 \ud328\uc2a4\ub108\ub85c \uba85\uc131\uc744 \uc5bb\uc740 \uc774\uc720\uac00 \uc788\uc2b5\ub2c8\ub2e4: 800 MPa\uc758 \uc778\uc7a5 \uac15\ub3c4, 640 MPa\uc758 \ud56d\ubcf5 \uac15\ub3c4, 12%\uc758 \uc5f0\uc2e0\uc728, \uadf8\ub9ac\uace0 M4\ubd80\ud130 M64\uae4c\uc9c0 \ubaa8\ub4e0 \ubbf8\ud130 \uaddc\uaca9\uc5d0\uc11c \uad6c\ud560 \uc218 \uc788\uc5b4 \ub300\ubd80\ubd84\uc758 \uad6c\uc870\ubb3c, \uc790\ub3d9\ucc28, \uae30\uacc4 \uccb4\uacb0 \uc791\uc5c5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ub4f1\uae09 \ud45c\uae30\ubc95\uc740 ISO 898-1\uc5d0 \ub530\ub77c \uc815\ud655\ud558\uace0 \uc804 \uc138\uacc4\uc801\uc73c\ub85c \ud45c\uc900\ud654\ub418\uc5b4 \uc788\uc5b4, \uc22b\uc790\uc758 \uc758\ubbf8\ub9cc \uc774\ud574\ud558\uba74 \uc801\ud569\ud55c \ubcfc\ud2b8 \uc120\ud0dd\uc774 \uac04\ub2e8\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n<p>\ub2e4\uc74c \uc801\uc6a9 \ubd84\uc57c\uc5d0\uc11c\ub294 \ud558\uc911\uc774 8.8 \ub4f1\uae09\uc758 \uc99d\uba85 \ud558\uc911 \ubc94\uc704 \ub0b4\uc5d0 \uc788\uace0, \ud658\uacbd\uc774 \uc2ec\ud558\uac8c \ubd80\uc2dd\uc131\uc774 \uc544\ub2c8\uba70, \uc870\ub9bd\uccb4\uac00 \ucd5c\uc18c \uc911\ub7c9\uc744 \uc694\uad6c\ud558\uc9c0 \uc54a\ub294\ub2e4\uba74 8.8 \ub4f1\uae09\ubd80\ud130 \uc2dc\uc791\ud558\uc138\uc694. 10.9 \ubc0f 12.9 \ub4f1\uae09\uc740 \ub354 \ub192\uc740 \ub4f1\uae09\uc774 \ud544\uc694\ud558\ub2e4\ub294 \ud558\uc911 \ubd84\uc11d\uc774 \ud655\uc778\ub41c \uacbd\uc6b0\uc5d0\ub9cc \uc0ac\uc6a9\ud558\uc138\uc694 \u2014 \uae30\ubcf8 \uc5c5\uadf8\ub808\uc774\ub4dc\ub85c \uc120\ud0dd\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \ubd80\uc2dd \ud658\uacbd\uc5d0 \ub9de\ub294 \ud45c\uba74 \ucc98\ub9ac\ub97c \uc120\ud0dd\ud558\uace0, \uad50\uc815\ub41c \uacf5\uad6c\ub85c \uaddc\uaca9\uc5d0 \ub9de\uac8c \ud1a0\ud06c\ub97c \uc8fc\uba70, \uc815\uae30\uc801\uc73c\ub85c \uc810\uac80\ud558\uc138\uc694. \ubcfc\ud2b8\ub294 \uc218\uc2ed \ub144\uac04 \uc2e0\ub8b0\uc131 \uc788\uac8c \uc5ed\ud560\uc744 \ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc81c\uc870 \uc774\ub825 \ucd94\uc801\uacfc \uc77c\uad00\ub41c \uae30\uacc4\uc801 \uc778\uc99d\uc774 \uac00\ub2a5\ud55c \ubbf8\ud130 \uaddc\uaca9 8.8 \ub4f1\uae09 \ubcfc\ud2b8\ub97c \ucc3e\uc73c\uc2e0\ub2e4\uba74, <a href=\"https:\/\/productionscrews.com\/ko\/\" rel=\"noopener\" target=\"_blank\">productionscrews.com\uc758 8.8 \ub4f1\uae09 \uc721\uac01 \ubcfc\ud2b8 \ubc0f \uc18c\ucf13 \ud5e4\ub4dc \ucea1 \uc2a4\ud06c\ub958 \uc81c\ud488\uad70\uc744 \ud655\uc778\ud574\ubcf4\uc138\uc694<\/a> \u2014 M4\ubd80\ud130 M36\uae4c\uc9c0 \ub2e4\uc591\ud55c \ub9c8\uac10 \uc635\uc158\uc73c\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>8.8 \ub4f1\uae09 \ubcfc\ud2b8\uc5d0 \ub300\ud574 \uc54c\uc544\uc57c \ud560 \ubaa8\ub4e0 \uac83: \ub4f1\uae09 \ubc88\ud638\uc758 \uc758\ubbf8, \uc778\uc7a5 \ubc0f \ud56d\ubcf5 \uac15\ub3c4, \uc885\ub958, \uc870\uc784 \ud1a0\ud06c, \uc790\ub3d9\ucc28, \uad6c\uc870\ubb3c, \uae30\uacc4 \ubd84\uc57c\uc5d0 \uc801\ud569\ud55c 8.8 \ubcfc\ud2b8 \uc120\ud0dd \ubc29\ubc95.<\/p>","protected":false},"author":1,"featured_media":4424,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-screws-flange-tutorial"],"_links":{"self":[{"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/posts\/4428","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/comments?post=4428"}],"version-history":[{"count":1,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/posts\/4428\/revisions"}],"predecessor-version":[{"id":4429,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/posts\/4428\/revisions\/4429"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/media\/4424"}],"wp:attachment":[{"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/media?parent=4428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/categories?post=4428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/productionscrews.com\/ko\/wp-json\/wp\/v2\/tags?post=4428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}