1 - 24
Metric Torque Chart
Size
Pitch
Stress
Area
(mm
2
)
Metric Grade 8.8
Assembly Torque
Metric Grade 10.9
Assembly Torque
Clamp Load
(lbs)
Lubed
(ft-lb)
Clamp Load
(lbs)
Lubed
(ft-lb)
6
1.00
20.1
1890
6
2660
8
7
1.00
28.9
2720
10
3830
15
8
1.25
36.6
3450
15
4850
20
10
1.50
58.0
5460
30
7680
40
12
1.75
84.3
7940
50
11170
70
14
2.00
115.0
10830
75
15230
110
16
2.00
157.0
14790
120
20800
170
20
2.50
245.0
23070
235
32460
330
24
3.00
383.0
33240
405
46760
570
Non-Ferrous Materials
Bolt Size
18-8
Stainless
Steel
(in-lb)
Brass
(in-lb)
Silicon
Bronze
(in-lb)
Aluminum
2024-T4
(in-lb)
316
Stainless
Steel
(in-lb)
Monel
(in-lb)
Nylon
(in-lb)
2-56
2.5 2.0
2.3
1.4
2.6
2.5
.44
2-65
3.0
2.5
2.8
1.7
3.2
3.1
--
3-48
3.9
3.2
3.6
2.1
4.0
4.0
--
3-56
4.4
3.6
4.1
2.4
4.6
4.5
--
4-40
5.2
4.2
4.8
2.9
5.5
5.3
1.19
4-48
6.6
5.4
6.1
3.6
6.9
6.7
--
5-40
7.7
6.3
7.1
4.2
8.1
7.8
--
5-44
9.4
7.7
8.7
5.1
9.8
9.6
--
6-32
9.6
7.9
8.9
5.3
10.1
9.8
2.14