TUG Technologies 660 - Graded Bolts; Table Operation-3-3: Torque Values for Graded Bolts

Operation Mobile Belt Loader Model 660
Operation Manual
CD397-Oper Operation - 3 - 29
3.2.2GradedBolts
27 3 916.533 1312.432 1533.430
30 3.5 1243.285 1778.833 2079.825
33 3.5 1692.060 2421.491 2829.592
36 4 2173.376 3110.246 3634.948
NOTE:
The listed torque values are based on the use of zinc plated, dry threads (or as
received for the 12.9).
TableOperation-3-3:TorqueValuesforGradedBolts
Nominal
Diameter(in.)
Threads
perInch
SAEJ429Grade5
(ft-lbs)
SAEJ429Grade8
(ft-lbs)
Unified Coarse Thread Series
1/4 20 7.2 10
5/16 18 15 21
3/8 16 26 37
7/16 14 42 59
1/2 13 64 90
9/16 12 92 130
5/8 11 128 180
3/4 10 227 320
7/8 9 365 515
1 8 547 772
1 1/4 7 952 1545
1 1/2 6 1657 2688
Fine Thread Series
1/4 28 8.3 12
5/16 24 16 23
TableOperation-3-2:TorqueValuesforMetricFasteners(Continued)
Nominal
Diameter
(mm)
Pitch
(mm)
Class8.8
(Nm)
Class10.9
(Nm)
Class12.9
(Nm)