Torque Requirements for Fasteners
PELLERIN MILNOR CORPORATION
Table 2: Torque Values for Standard Fasteners Larger Than 5/16-inch Diameters and No Lubricant
Dimension
The Grade of the Bolt
Grade 2
Grade 5
Grade 8
Grade BC
Pound-feet
N-m
Pound-feet
N-m
Pound-feet
N-m
Pound-feet
N-m
3/8 x 16
20
27
31
42
44
59
38
52
3/8 x 24
23
31
35
47
50
68
--
--
7/16 x 14
32
43
49
66
70
95
61
83
7/16 x 20
36
49
55
75
78
105
--
--
1/2 x 13
49
66
75
102
107
145
93
126
1/2 x 20
55
75
85
115
120
163
--
--
9/16 x 12
70
95
109
148
154
209
134
182
9/16 x 18
78
106
121
164
171
232
--
--
5/8 x 11
97
131
150
203
212
287
186
252
5/8 x 18
110
149
170
231
240
325
--
--
3/4 x 10
172
233
266
361
376
510
329
446
3/14 x 16
192
261
297
403
420
569
--
--
7/8 x 9
167
226
429
582
606
821
531
719
7/8 x 14
184
249
473
641
668
906
--
--
1 x 8
250
339
644
873
909
1232
796
1079
1 x 12
274
371
704
954
994
1348
--
--
1 x 14
281
381
723
980
1020
1383
--
--
1 1/8 x 7
354
480
794
1077
1287
1745
1126
1527
1 1/8 x 12
397
538
891
1208
1444
1958
--
--
1 1/4 x 7
500
678
1120
1519
1817
2464
1590
2155
1 1/4 x 12
553
750
1241
1682
2012
2728
--
--
1 3/8 x 6
655
888
1469
1992
2382
3230
2085
2827
1 3/8 x 12
746
1011
1672
2267
2712
3677
--
--
1 1/2 x 6
869
1178
1949
2642
3161
4286
2767
3751
1 1/2 x 12
979
1327
2194
2974
3557
4822
--
--
Table 3: Torque Values for Plated Fasteners with Maximum 5/16-inch Diameters and No Lubricant
Dimension
The Grade of the Bolt
Grade 2
Grade 5
Grade 8
Grade BC
Pound-Inches
N-m
Pound-Inches
N-m
Pound-Inches
N-m
Pound-Inches
N-m
1/4 x 20
49
6
76
9
107
12
95
11
1/4 x 28
56
6
88
10
122
14
--
--
5/16 x 18
102
12
156
18
222
25
193
22
5/16 x 24
113
13
174
20
245
28
--
--
33
Summary of Contents for 36021V5Z
Page 2: ......
Page 35: ...Service and Maintenance 1 31 ...
Page 44: ......
Page 45: ...Drive Assemblies 2 41 ...
Page 52: ......
Page 53: ...Bearing Assemblies 3 49 ...
Page 65: ...20 Inch Door Assemblies after 8 2016 4 61 ...
Page 75: ...Chemical and Supply Devices 5 71 ...
Page 83: ...Water Piping Assemblies 6 79 ...
Page 96: ......