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Table 4.1 Bolt length and Nut tightening torque
Hexagon head bolts
Meter size
P.C.S Diameter
15mm
1/2"
4
25mm
1"
4
32mm
1 1/4"
4
40mm
1 1/2"
4
50mm
2"
4
65mm
2 1/2"
4
80mm
3"
8
100mm
4"
8
125mm
5"
8
150mm
6"
8
200mm
8"
12
250mm
10"
12
300mm
12"
16
350mm
14"
16
400mm
16"
16
450mm
18"
20
500mm
20"
20
600mm
24"
24
− １９ −
JIS 10K
Tightening
torque
Length
[N･m]
[mm]
M12
50
6 to 8
M16
55
16 to 21
M16
55
21 to 26
M16
55
18 to 22
M16
55
31 to 39
M16
60
48 to 60
M16
60
23 to 29
M16
60
35 to 44
M20
75
66 to 82
M20
75
89 to 111
M20
75
79 to 99
M22
80
125 to 156
M22
80
128 to 160
M22
85
156 to 194
M24
90
212 to 265
M24
95
210 to 262
M24
95
268 to 334
M30
100
372 to 465
６Ｆ８Ａ０８８２
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Troubleshooting
