Recommended Fastener Torque - BRADEN CH400B Installation Maintenance And Service Manual

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 30W 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.
Bolt Dia. Thds Per
Inches Inch
20
1/4
28
18
5/16
24
16
3/8
24
14
7/16
20
13
1/2
20
12
9/16
18
11
5/8
18
To convert lb.-ft. to kg-m, multiply lb.-ft. value by 0.1383.
RECOMMENDED FASTENER TORQUE
Torque (LB-FT)
Grade 5 Grade 8
Dry Lubed Dry Lubed
8 6 12
17 13 24
31 23 45
50 35 70
75 55 110
110 80 150 110
150 115 210 160
Bolt Dia. Thds Per
Inches
9 3/4
18 7/8
35 1
50 1 1/8
80 1 1/4
1 3/8
1 1/2
34
Torque (LB-FT)
Grade 5
Dry Lubed
Inch
10
265 200
16
9
420 325
14
8
640 485
14
7
790 590
12
7
1120 835
12
6
1460 1095
12
6
1940 1460
12
Grade 8
Dry Lubed
380 280
600 450
910 680
1290 970
1820 1360
2385 1790
3160 2370