BRADEN PCD24B - Bolt Torque Chart

20
RECOMMENDED FASTENER TORQUE
The general purpose torque shown in the chart applies to SAE Grade 5 bolts, studs and standard steel full, thick
and high nuts.
Higher or lower torques for special applications will be specified such as the use of spanner nuts, nuts on shaft
ends, jam nuts and where distortion of parts or gaskets is critical.
Lubricated Torque values based on use of SAE 30wt engine oil applied to threads and face of bolt or nut.
Avoid using thread lubricants as the applied torque may vary by 10-40% depending upon product used.
Dry Lubed Dry Lubed Dry Lubed Dry Lubed
Torque (LB-FT)
Grade 5
Grade 8
1/4
20
28
5/16
3/8
18
24
16
24
7/16
1/2
9/16
5/8
8
6
12
9
17
13
24
18
45
35
70
50
23
31
50
35
80
110
80
150
110
110
55
75
150
115
210
160
14
20
13
20
12
18
11
18
265
200
Torque (LB-FT)
Grade 5
Grade 8
380
280
7/8
9
14
420
325
600
450
3/4
10
16
680
1 1/8
7
12
790
590
1290
970
1
8
14
640
7
12
1120
835
910
485
1460
1820
1360
1 3/8
6
12
1460
1095
2385
1790
1 1/4
3160
2370
RECOMMENDED FASTENER TORQUE
Bolt Dia.
Inches
Thds Per
Inch
Bolt Dia.
Inches
Thds Per
Inch
1 1/2
6
12
1940
To convert lb. ft. to kg
•
m, multiply lb. ft. value by 0.1383.