North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
12
Torque Values for Fasteners
Note: All threads and bearing face to be lubricated with light oil film prior to assembly.
Table 1. U.S. Standard Fine and Coarse Thread Capscrews, Bolts, and Nuts
Table 2. Metric Coarse Thread Capscrews, Bolts, and Nuts
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
Thread
Diameter
6 - 8
13 - 17
25 - 29
37 - 43
60 - 70
82 - 98
120 - 140
205 - 245
330 - 390
495 - 595
615 - 745
850 - 1000
lb - ft
SAE Grade 5
8 - 11
18 - 23
34 - 39
51 - 58
81 - 95
111 - 132
163 - 190
278 - 332
448 - 528
671 - 806
834 - 1010
1163 - 1355
Nm
lb - ft
SAE Grade 8
Nm
10 - 12
20 - 24
35 - 41
55 - 65
83 - 97
120 - 140
165 - 195
295 - 345
470 - 550
715 - 845
1015 - 1185
1375 - 1625
14 - 16
27 - 32
48 - 55
75 - 88
113 - 131
163 - 190
224 - 264
400 - 467
638 - 745
970 - 1145
1377 - 1606
1865 - 2203
Thread
Size
M6
M8
M10
M12
M16
M20
M24
M30
6.5 - 7.5
16 - 18
32 - 36
55 - 63
132 -151
257 - 295
445 - 511
714 - 820
9 -10
21 - 25
43 - 49
74 - 86
179 - 205
348 - 400
603 - 693
987 - 1113
9 -10
23 - 26
44 - 51
77 - 88
189 - 217
364 - 418
626 - 720
1235 - 1421
12 -14
31 - 35
60 - 68
104 - 120
256 - 294
493 - 567
848 - 976
1674 - 1926
lb - ft
10 - 12
25 - 29
51 - 59
89 - 103
219 - 253
429 - 493
737 - 848
1475 - 1697
Nm
lb - ft
Nm
lb - ft
Property Class 8.8
Property Class 10.9
Property Class 12.9
Nm
14 - 16
34 - 40
70 - 80
121 - 139
298 - 342
581 - 669
1000 - 1150
2000 - 2301