TP-6071 3/00A-4 Appendix
Appendix C General Torque Specifications
Use the following torque specifications when service
literature instructions give no specific torque values.
The charts list values for new plated, zinc phosphate, or
oiled threads. Increase values by 15% for nonplated
threads. All torque values are +0%/--10%.
American Standard Fasteners Torque Specifications
Assembled into Cast Iron or Steel
ssembled into
Size
Torque
Measurement
Grade 2 Grade 5 Grade 8
Aluminum
Grade 2 or 5
8-32 in.lbs.(Nm) 16 (1.8) 20 (2.3) — 16 (1.8)
10-24 in.lbs.(Nm) 26 (2.9) 32 (3.6) — 26 (2.9)
10-32 in.lbs.(Nm) 26 (2.9) 32 (3.6) — 26 (2.9)
1/4-20 in.lbs.(Nm) 60 (6.8) 96 (10.8) 132 (14.9) 60 (6.8)
1/4-28 in.lbs.(Nm) 72 (8.1) 108 (12.2) 144 (16.3) 72 (8.1)
5/16-18 in.lbs.(Nm) 120 (13.6) 192 (21.7) 264 (29.8) 120 (13.6)
5/16-24 in.lbs.(Nm) 132 (14.9) 204 (23.1) 288 (32.5) 132 (14.9)
3/8-16 ft. lbs. (Nm) 18 (24) 28 (38) 39 (53) 18 (24)
3/8-24 ft. lbs. (Nm) 20 (27) 31 (42) 44 (60) 20 (27)
7/16-14 ft. lbs. (Nm) 29 (39) 44 (60) 63 (85) —
7/16-20 ft. lbs. (Nm) 32 (43) 50 (68) 70 (95) —
1/2-13 ft. lbs. (Nm) 44 (60) 68 (92) 96 (130) —
1/2-20 ft. lbs. (Nm) 49 (66) 76 (103) 108 (146) —
9/16-12 ft. lbs. (Nm) 60 (81) 98 (133) 138 (187) —
9/16-18 ft. lbs. (Nm) 67 (91) 109 (148) 154 (209) —
5/8-11 ft. lbs. (Nm) 83 (113) 135 (183) 191 (259) —
5/8-18 ft. lbs. (Nm) 94 (128) 153 (208) 216 (293) —
3/4-10 ft. lbs. (Nm) 147 (199) 240 (325) 338 (458) —
3/4-16 ft. lbs. (Nm) 164 (222) 268 (363) 378 (513) —
1-8 ft. lbs. (Nm) 191 (259) 532 (721) 818 (1109) —
1-12 ft. lbs. (Nm) 209 (283) 582 (789) 895 (1214) —
Metric Fasteners Torque Specifications, Measured in ft. lbs. (Nm)
Assembled into Cast Iron or Steel
Assembled into
Size (mm) Grade 5.8 Grade 8.8 Grade 10.9
luminum
Grade 5.8 or 8.8
M6 x 1.00 4 (5.6) 7 (9.9) 10 (14) 4 (5.6)
M8 x 1.25 10 (13.6) 18 (25) 26 (35) 10 (13.6)
M8 x 1.00 16 (21) 18 (25) 26 (35) 16 (21)
M10 x 1.50 20 (27) 35 (49) 50 (68) 20 (27)
M10 x 1.25 29 (39) 35 (49) 50 (68) 29 (39)
M12 x 1.75 35 (47) 61 (83) 86 (117) —
M12 x 1.50 48 (65) 65 (88) 92 (125) —
M14 x 2.00 55 (74) 97 (132) 136 (185) —
M14 x 1.50 74 (100) 103 (140) 142 (192) —
M16 x 2.00 85 (115) 148 (200) 210 (285) —
M16 x 1.50 104 (141) 155 (210) 218 (295) —
M18 x 2.50 114 (155) 203 (275) 288 (390) —
M18 x 1.50 145 (196) 225 (305) 315 (425) —