Metric (ISO) Fastener

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Torque Specifications Torque Specifications

Metric (ISO) Fasteners

SMCS - 7553

Metric (ISO) Nuts and Bolts

Note: The following table has the recommended standard torque values for metric nuts and bolts for use onall Caterpillar equipment and Mitsubishi engines.

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Product: TRACK-TYPE TRACTORModel: D8L TRACK-TYPE TRACTOR 53Y

Configuration: D8L TRACTOR 53Y00001-UP (MACHINE) POWERED BY 3408

ENGINE

Media Number -SENR3130-12 Publication Date -01/02/2009 Date Updated -24/02/2009

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Illustration 1 g00909614

Table 1

Thread Size

mmTorque

M6 12 ± 3 N·m (105 ± 27 lb in)

M828 ± 7 N·m (250 ± 62 lb in)

M1055 ± 10 N·m (41 ± 7 lb ft)

M12

100 ± 20 N·m (75 ± 15 lb ft)

M14160 ± 30 N·m (120 ± 22 lb ft)

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Note: The following table has the recommended standard torque values for metric nuts and bolts for use onPerkins engines.

Note: The difference between Caterpillar standard torque values and Perkins standard torque values are dueto different classes of fasteners. Caterpillar uses class 10.9 fasteners. Perkins uses class 8.8 fasteners. Thedifferent class of fasteners have different tensile strengths.

Metric (ISO) Taperlock Studs

Note: The following table has the recommended standard torque values for metric taperlock studs for use onall Caterpillar equipment and Mitsubishi engines.

M16240 ± 40 N·m (175 ± 30 lb ft)

M20460 ± 60 N·m (340 ± 44 lb ft)

M24800 ± 100 N·m (590 ± 75 lb ft)

M301600 ± 200 N·m (1180 ± 150 lb ft)

M362800 ± 350 N·m (2060 ± 260 lb ft)

Table 2

Thread Size

mm

Torque

M65 N·m (44 lb in)

M822 N·m (195 lb in)

M10

44 N·m (32 lb ft)

M1278 N·m (60 lb ft)

M14124 N·m (90 lb ft)

M16177 N·m (130 lb ft)

M18200 N·m (150 lb ft)

M20400 N·m (300 lb ft)

M24790 N·m (580 lb ft)




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Note: The following table has the recommended standard torque values for Metric taperlock studs for use onPerkins engines.

Metric (ISO) Machine Screws

Table 3

Thread Size

mm

Torque

M6

8 ± 3 N·m (71 ± 27 lb in)

M817 ± 5 N·m (150 ± 44 lb in)

M1035 ± 5 N·m (26 ± 4 lb ft)

M1265 ± 10 N·m (48 ± 7 lb ft)

M16110 ± 20 N·m (80 ± 15 lb ft)

M20170 ± 30 N·m (125 ± 22 lb ft)

M24400 ± 60 N·m (300 ± 44 lb ft)

M30750 ± 80 N·m (550 ± 60 lb ft)

M361200 ± 150 N·m (880 ± 110 lb ft)

Table 4

Thread Size

mm

Torque

M65 N·m (44 lb in)

M811 N·m (97 lb in)

M1018 N·m (160 lb in)

M1225 N·m (220 lb in)




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Hex Button Head Screw and Set Screws


Table 5

Thread Size

mmTorque

M1.60.10 ± 0.01 N·m (0.9 ± 0.1 lb in)

M20.15 ± 0.01 N·m (1.3 ± 0.1 lb in)

M2.50.35 ± 0.05 N·m (3.1 ± 0.4 lb in)

M30.50 ± 0.05 N·m (4.4 ± 0.4 lb in)

M4 1.70 ± 0.25 N·m (15.0 ± 2.2 lb in)

M52.25 ± 0.25 N·m (19.9 ± 2.2 lb in)


Table 6

Thread Size Torque




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Metric (ISO) Fastener