TRANS PIPE 5U1127 - Caterpillar

Be very careful never to mix metric with U.S. customary (standard) fasteners.Mismatched or incorrect fasteners causes machine damage or malfunction and can result in personal injury.
The following tables show the general torques for the following components:
Bolts
Nuts
Taperlock studsThe components have a minimum rating of SAE Grade 8.The material strength identification is usually shown on the bolt head by numbers.When possible, save the original fasteners that are removed from the machine for assembly. If the new fasteners are needed, the new fasteners must be of the same size as the fasteners that are being replaced and of the same grade as the fasteners that are being replaced.Note: Metric hardware must be replaced with metric hardware. Refer to the Parts Manual for the proper replacement part.
Table 1
Metric Nuts and Bolts
Thread Size
Metric Standard Torque
M6 12 3 N m (9 2 lb ft)
M8 28 7 N m (21 5 lb ft)
M10 55 10 N m (41 7 lb ft)
M12 100 20 N m (75 15 lb ft)
M14 160 30 N m (120 22 lb ft)
M16 240 40 N m (175 30 lb ft)
M20 460 60 N m (340 44 lb ft)
M24 800 100 N m (590 75 lb ft)
M30 1600 200 N m (1180 150 lb ft)
M36 2700 300 N m (2000 220 lb ft)
Table 2
Metric Taperlock Studs
Thread Size
Metric Standard Torque
M6 8 3 N m (6 2 lb ft)
M8 17 5 N m (13 4 lb ft)
M10 35 5 N m (26 4 lb ft)
M12 65 10 N m (48 7 lb ft)
M16 110 20 N m (80 15 lb ft)
M20 170 30 N m (125 22 lb ft)
M24 400 60 N m (300 44 lb ft)
M30 750 80 N m (550 60 lb ft)
M36 1200 150 N m (880 110 lb ft)