Komatsu D37EX-24 Operation & Maintenance Manual page 287

MAINTENANCE
Nominal - No. of across
threads "a" flats "b"
9/16-18UNF
11/16-16UN
13/16-16UN
1-14UNS
1 3/16-12UN
Width
Target value
(mm)
Nm
19 44
22 74
27 103
32 157
36 216
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS
Tightening torque
kgm
4.5 35 to 54
7.5 54 to 93
10.5 84 to 132
16.0 128 to 186
22.0 177 to 245
Allowable range
Nm
3.5 to 5.5
5.5 to 9.5
8.5 to 13.5
13.0 to 19.0
18.0 to 25.0
kgm
4-11