Technical Section
  Bolt Torquing Chart
METRIC STANDARD
Grade of Bolt
5D
8G
10K
12K
 
Minimum Tensile Strength
71,160 PSI
113,800 PSI
142,200 PSI
170,679 PSI
Size of Socket or Wrench Opening
Metric
Foot Pounds
Metric
Bolt Dia.
U.S. Dec. Equiv.
Bolt Head
6 mm
.2362
5
6
8
10
10 mm
8 mm
.3150
10
16
22
27
14 mm
10 mm
.3937
19
31
40
49
17 mm
12 mm
.4720
34
54
70
86
19 mm
14 mm
.5512
55
89
117
137
22 mm
16 mm
.6299
83
132
175
208
24 mm
18 mm
.7090
111
182
236
283
27 mm
22 mm
.8661
182
284
394
464
32 mm

SAE STANDARD / FOOT POUNDS
Grade of Bolt
SAE
1 & 2
SAE
5
SAE
6
SAE
8
 
Minimum Tensile Strength
64,000 PSI
105,000 PSI
133,000 PSI
150,000 PSI
Size of Socket or
Wrench Opening
U.S Standard
Foot Pounds
Metric
Bolt Dia.
Bolt Head
Nut
1/4
5
7
10
10.5
3/8
7/16
5/16
9
14
19
22
1/2
9/16
3/8
15
25
34
37
9/16
5/8
7/16
24
40
55
60
5/8
3/4
1/2
37
60
85
92
3/4
13/16
9/16
53
88
120
132
7/8
7/8
5/8
74
120
167
180
15/16
1
3/4
120
200
280
296
1-1/8
1-1/8

 

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