RADICAL SR1 - Page 39

39 QD134-15
Advisory generalized bolt torques:
Bolt size/Thread pitch
Grade 2
Grade 5
Grade 8
1/4-20
6
10
12
1/4-28
7
12
15
5/16-18
13
20
24
5/16-24
14
22
27
3/8-16
23
36
44
3/8-24
26
40
48
7/16-14
37
52
63
7/16-20
41
57
70
1/2-13
57
80
98
1/2-20
64
90
110
9/16-12
82
120
145
9/16-18
91
135
165
5/8-11
111
165
210
5/8-18
128
200
245
3/4-10
200
285
335
3/4-16
223
315
370
*All settings above are listed in Ft/Lb.
Bolt size (m m )
Low Grade
Grade 8.8
Grade 10.9
Grade 12.9
6
3-5
7
10
12
8
8-12
17
24
29
10
15-22
33
47
57
12
39
59
83
100
14
60
101
131
158
16
60-94
146
202
247
18
60-130
201
283
340
20
166-188
285
401
482