WACKER Group BS 50 Manuel De Réparation page 128

Torque Values
Torque Values (continued)
Inch Fasteners (SAE)
Size Nm ft.lb.
No.4 0.7 *6
No.6 1.4 *12
No.8 2.5 *22
No.10 3.6 *32
1/4 8.1
5/16 18 13
3/8 31 23
7/16 50 37
1/2 77 57
9/16 111 82
5/8 152 112
3/4 271 200
1 ft.lb. = 1.357 Nm
Nm ft.lb.
1.0 *14
1.9 *17
3.5 *31
5.1 *45
6 12 9
26 19
45 33
71 52
109 80
156 115
216 159
383 282
Nm ft.lb. Metric
1.4 *12 5.5
2.4 *21 8
4.7 *42 9
6.8 *60 –
16 12 –
33 24 13
58 43 –
94 69 16
142 105 19
214 158 –
265 195 24
479 353 –
* = in.lb.
Inch Metric Inch
1/4 – 3/32
5/16 – 7/64
11/32 – 9/64
3/8 – 5/32
7/16 – 3/32
1/2 – 1/4
9/16 – 5/16
5/8 – 3/8
3/4 – 3/8
13/16 – –
15/16 – 1/2
1-1/8 – 5/8
1 inch = 25.4 mm