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22. Standard Tightening Torque for Bolts and Nuts
3-14
Bolts or nuts in the metric system should be tightened at the torque described below unless specified
otherwise.
IMPORTANT
If a part to be tightened is made of resin like a panel board, excessive tightening torque may dam-
age the tightened part. Be careful when tightening.
22-2. Torque table
Item
Thread size
¯
pitch
Tightening torque ft•lbf (N•m)
Remarks
Hexagon bolt (7T)
Nut
Coarse
threads
M6
¯
1
7.23
to
8.68
(9.8
to
11.8)
1) Apply 80% tightening torque
when tightened to aluminum.
2) Apply 60% tightening torque for
4T bolt and lock nut.
3) Use fine thread screws for en-
gine only.
M8
¯
1.25
16.6 to 21.0 (22.6 to 28.4)
M10
¯
1.5
32.6 to 43.4 (44.1 to 58.8)
M12
¯
1.75
57.9 to 72.3 (78.5 to 98.1)
M14
¯
2
86.8 to 108.5 (117.7 to 147.1)
M16
¯
2
123.0 to 151.9 (166.7 to 206.0)
M18
¯
2.5
173.6 to 209.8 (235.4 to 284.4)
M20
¯
2.5
238.7 to 296.6 (323.6 to 402.1)
Fine
threads
M14
¯
1.5
94.0 to 108.5 (127.5 to 147.1)
M16
¯
1.5
155.5 to 177.2 (210.9 to 240.3)
R (PT) plug
1/8
7.2 (9.8)
1/4
14.5 (19.6)
3/8
21.7 (29.4)
1/2
43.4 (58.8)
Pipe joint bolt
M8
9.4 to 12.3 (12.7 to 16.7)
M12
18.1 to 25.3 (24.5 to 34.3)
M14
28.9 to 36.2 (39.2 to 49.0)
M16
36.2 to 43.4 (49.0 to 58.8)
Summary of Contents for Z17 GEN:2
Page 28: ...MEMO 1 16 Courtesy of Machine Market...
Page 40: ...MEMO 1 28 Courtesy of Machine Market...
Page 41: ...2 1 OPERATION Courtesy of Machine Market...
Page 128: ...MEMO 2 88 Courtesy of Machine Market...
Page 129: ...3 1 MAINTENANCE Courtesy of Machine Market...
Page 188: ...MEMO 3 60 Courtesy of Machine Market...
Page 189: ...4 1 SPECIFICATIONS AND DIMENSIONAL DIAGRAMS Courtesy of Machine Market...
Page 192: ...MEMO 4 4 Courtesy of Machine Market...
Page 193: ...5 1 OPTIONAL PARTS AND ATTACHMENTS Courtesy of Machine Market...
Page 196: ...MEMO 5 4 Courtesy of Machine Market...
Page 197: ...6 1 NOTES Courtesy of Machine Market...
Page 199: ...28 Maintenance Log 6 3 Date Machine hours Service performed Courtesy of Machine Market...
Page 200: ...28 Maintenance Log 6 4 Date Machine hours Service performed Courtesy of Machine Market...
Page 201: ...28 Maintenance Log 6 5 Date Machine hours Service performed Courtesy of Machine Market...
Page 202: ...6 6 29 Notes Notes Courtesy of Machine Market...
Page 203: ...29 Notes 6 7 Courtesy of Machine Market...
Page 204: ...29 Notes 6 8 Courtesy of Machine Market...
Page 205: ...29 Notes 6 9 Courtesy of Machine Market...
Page 206: ...MEMO 6 10 Courtesy of Machine Market...
Page 207: ...Courtesy of Machine Market...