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GI-14 < HOW TO USE THIS MANUAL > TIGHTENING TORQUE OF STANDARD BOLTS TIGHTENING TORQUE OF STANDARD BOLTS Tightening Torque Table INFOID:0000000005149580 *: Nominal diameter Special parts are excluded. 2. This standard is applicable to bolts having the following marks embossed on the bolt head. Grade Bolt size Bolt diam- eter * mm Pitch mm Tightening torque (Without lubricant) Hexagon head bolt Hexagon flange bolt N·m kg-m ft-lb in-lb N·m kg-m ft-lb in-lb 4T M6 6.0 1.0 5.5 0.56 4 49 7 0.71 5 62 M8 8.0 1.25 13.5 1.4 10 — 17 1.7 13 — 1.0 13.5 1.4 10 — 17 1.7 13 — M10 10.0 1.5 28 2.9 21 — 35 3.6 26 — 1.25 28 2.9 21 — 35 3.6 26 — M12 12.0 1.75 45 4.6 33 — 55 5.6 41 — 1.25 45 4.6 33 — 65 6.6 48 — M14 14.0 1.5 80 8.2 59 — 100 10 74 — 7T M6 6.0 1.0 9 0.92 7 80 11 1.1 8 97 M8 8.0 1.25 22 2.2 16 — 28 2.9 21 — 1.0 22 2.2 16 — 28 2.9 21 — M10 10.0 1.5 45 4.6 33 — 55 5.6 41 — 1.25 45 4.6 33 — 55 5.6 41 — M12 12.0 1.75 80 8.2 59 — 100 10 74 — 1.25 80 8.2 59 — 100 10 74 — M14 14.0 1.5 130 13 96 — 170 17 125 — 9T M6 6.0 1.0 11 1.1 8 — 13.5 1.4 10 — M8 8.0 1.25 28 2.9 21 — 35 3.6 26 — 1.0 28 2.9 21 — 35 3.6 26 — M10 10.0 1.5 55 5.6 41 — 80 8.2 59 — 1.25 55 5.6 41 — 80 8.2 59 — M12 12.0 1.75 100 10 74 — 130 13 96 — 1.25 100 10 74 — 130 13 96 — M14 14.0 1.5 170 17 125 — 210 21 155 — MGI044A |