Torque Specifications for Stainless Steel, Silicon Bronze, Monel, Brass, and Aluminum
|
Bolt Size
|
18-8 Stainless Steel
Torque in-lbs |
316 Stainless Steel
Torque in-lbs |
Silicon Bronze
in-lbs |
Monel
in-lbs |
Brass
in-lbs |
2024-T4 Aluminum
in-lbs |
|
4-40
|
5.2
|
5.5
|
4.8
|
5.3
|
4.3
|
2.9
|
|
4-48
|
6.6
|
6.9
|
6.1
|
6.7
|
5.4
|
3.6
|
|
5-40
|
7.7
|
8.1
|
7.1
|
7.8
|
6.3
|
4.2
|
|
5-44
|
9.4
|
9.8
|
8.7
|
9.6
|
7.7
|
5.1
|
|
6-32
|
9.6
|
10.1
|
8.9
|
9.8
|
7.9
|
5.3
|
|
6-40
|
12.1
|
12.7
|
11.2
|
12.3
|
9.9
|
6.6
|
|
8-32
|
19.8
|
20.7
|
18.4
|
20.2
|
16.2
|
10.8
|
|
8-36
|
22
|
23
|
20.4
|
22.4
|
18.0
|
12.0
|
|
10-24
|
22.8
|
23.8
|
21.2
|
25.9
|
18.6
|
13.8
|
|
10-32
|
31.7
|
33.1
|
29.3
|
34.9
|
25.9
|
19.2
|
|
1/4-20
|
75.2
|
78.8
|
68.8
|
85.3
|
61.5
|
45.6
|
|
1/4-28
|
94
|
99
|
87
|
106
|
77
|
57
|
|
5/16-18
|
132
|
138
|
123
|
149
|
107
|
80
|
|
5/16-24
|
142
|
147
|
131
|
160
|
116
|
86
|
|
3/8-16
|
236
|
247
|
219
|
266
|
192
|
143
|
|
3/8-24
|
259
|
271
|
240
|
294
|
212
|
157
|
|
7/16-14
|
376
|
393
|
349
|
427
|
317
|
228
|
|
7/16-20
|
400
|
418
|
371
|
451
|
327
|
242
|
|
Bolt Size
|
18-8 Stainless Steel
Torque ft-lbs |
316 Stainless Steel
Torque ft-lbs |
Silicon Bronze
ft-lbs |
Monel
ft-lbs |
Brass
ft-lbs |
2024-T4 Aluminum
ft-lbs |
|
1/2-13
|
43
|
45
|
40
|
48.7
|
35.2
|
26
|
|
1/2-20
|
45
|
47
|
42
|
51
|
37
|
27
|
|
9/16-12
|
56
|
59
|
53
|
65
|
47
|
34
|
|
9/16-18
|
62
|
65
|
58
|
71
|
51
|
38
|
|
5/8-11
|
92
|
96
|
86
|
111
|
76
|
60
|
|
5/8-18
|
103
|
108
|
96
|
123
|
85
|
67
|
|
3/4-10
|
127
|
131
|
118
|
153
|
104
|
82
|
|
3/4-16
|
124
|
129
|
115
|
149
|
102
|
80
|
|
7/8-9
|
194
|
202
|
178
|
231
|
159
|
124
|
|
7/8-14
|
193
|
201
|
177
|
230
|
158
|
124
|
|
1 - 8
|
286
|
299
|
265
|
344
|
235
|
184
|
|
1 - 14
|
259
|
270
|
240
|
311
|
212
|
166
|