Tightening Torques For General Use Screws, Bolts And Nuts - Kubota GL6000A-AU-B Workshop Manual

GL6000A-AU-B, GL6000D-AU-B,GL9000A-AU-B, GL9000D-AU-B, WSM
[2] TIGHTENING TORQUES FOR GENERAL USE SCREWS, BOLTS
AND NUTS
When the tightening torques are not specified, tighten the screws, bolts and nuts according to the table below.
Indication on
top of bolt
Indication on
top of nut
Unit
M4 0.98 to 2.9
M5 2.0 to 3.9
M6 7.9 to 9.3
M8 18 to 20
M10 40 to 45
M12 63 to 72
Screw and bolt material grades are shown by numbers punched on the screw and bolt heads. Prior to
tightening, be sure to check out the numbers as shown below.
Punched number
None or 4
7 Special screw and bolt S43C, S48C (Refined)
No-grade or 4T
N·m kgf·m
0.10 to 0.30
0.20 to 0.40
0.80 to 0.95
1.8 to 2.1
4.0 to 4.6
6.4 to 7.4
Screw and bolt material grade
Standard screw and bolt SS41, S20C
No-grade or 4T
lbf·ft N·m
0.73 to 2.1 –
1.5 to 2.8 –
5.8 to 6.8 9.81 to 11.2
13 to 15 24 to 27
29 to 33 48 to 55
47 to 53 78 to 90
2-S11
GENERATOR
7T
kgf·m lbf·ft
– –
– –
1.00 to 1.15 7.24 to 8.31
2.4 to 2.8 18 to 20
4.9 to 5.7 36 to 41
7.9 to 9.2 58 to 66
9Y1211607GRS0012US0
KiSC issued 06, 2016 A