Table 4.1 Bolt length and Nut tightening torque
Meter size
15mm
25mm
32mm
40mm
50mm
65mm
80mm
100mm
125mm
150mm
200mm
250mm
300mm
350mm
400mm
450mm
500mm
600mm
・m] is 0.7376 [ft・lbf].
*1: 1[N
ANSI class 150
Machine Bolts
P.C.S Diameter
1/2"
4
1/2"
1"
4
1/2"
1 1/4"
4
1/2"
1 1/2"
4
1/2"
2"
4
5/8"
2 1/2"
4
5/8"
3"
4
5/8"
4"
8
5/8"
5"
8
3/4"
6"
8
3/4"
8"
8
3/4"
10"
12
7/8"
12"
12
7/8"
14"
12
1"
16"
16
1"
18"
16
1 1/8"
20"
20
1 1/8"
24"
20
1 1/4"
- 20 -
Tightening
torque
Length
[N・m] *1
[inch]
2"
7 to 9
2.16"
14 to 17
2.16"
19 to 24
2.36"
16 to 21
2.56"
37 to 46
2.95"
52 to 66
2.95"
55 to 69
2.95"
40 to 51
3.15"
68 to 85
3.15"
89 to 112
3.54"
119 to 149
3.86"
159 to 198
3.94"
183 to 229
4.33"
203 to 254
4.53"
232 to 289
4.92"
322 to 402
5.12"
336 to 420
5.70"
497 to 622
6F8A0883