Hardware
Page 86
E-451 & E-457
ME-45X-01
Generic Torque Values
All torque values are for clean dry zinc plated threads in noncritical steel assemblies of the same hardness
specication. Reduce torque approximately 10-15% for lubricated threads.
Refer to the service section assembly procedure for critical torque values.
Imperial (inch), Foot Pounds
Grade, SAE
Dia. Pitch 2 5 8 L9
#4 40 * * * *
#6 32 * * * *
#8 32 * * * *
#10 32 * * * *
#12 32 * * * *
1/4 20 5.5 8.5 12.5 11
28 6.5 10.5
5/16 18 12.0 17.5 24.5 22
24 12.5 19.0 * *
3/8 16 20 30 43 40
24 22.5 33 50 45
7/16 14 27 50 70 65
20 36 55 77 70
1/2 13 49 75 106 95
20 55 85 120 110
9/16 12 70 109 153 140
18 78 121 171 160
5/8 11 97 150 212 195
18 110 170 240 225
3/4 10 172 275 376 350
16 192 297 420 390
7/8 9 278 429 593 565
14 306 473 818 625
1 8 416 644 909 850
14 466 721 1018 930
1-1/8 7 590 794 1287 1700
12 662 891 1444 1850
1-1/4 7 832 1120 1817 2950
12 922 1241 2012 3330
Imperial (inch), Newton Meters
Grade, SAE
Dia. Pitch 2 5 8 L9
#4 40 * * * *
#6 32 * * * *
#8 32 * * * *
#10 32 * * * *
#12 32 * * * *
1/4 20 7.4 11.5 16.9 14.9
28 8.8 14.2
5/16 18 16.2 23.7 33.2 29.8
24 16.9 25.8 * *
3/8 16 27.1 41 58 54
24 30.5 45 68 61
7/16 14 37 68 95 88
20 49 75 104 95
1/2 13 66 102 144 129
20 75 115 163 149
9/16 12 95 148 614 190
18 106 164 232 217
5/8 11 132 203 287 264
18 149 230 325 305
3/4 10 233 373 510 475
16 260 403 569 529
7/8 9 377 582 804 766
14 415 641 1109 847
1 8 564 873 1232 1152
14 632 978 1380 1261
1-1/8 7 800 1076 1744 2304
12 897 1208 2364 2508
1-1/4 7 1128 1518 2463 4000
12 1250 1682 2727 4514
Conversion Formulas:
1: Foot Pounds = Newton Meters x 0.737562149
2: Newton meters = Foot Pounds x 1.355817948
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