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GENERAL INFORMATION
CASE TRAINING CENTER
AUGUST 2000
STANDARD TORQUE DATA FOR CAP SCREWS AND NUTS
Tightening of cap screws, nuts
Tighten alternately so that tightening torque can be applied evenly. The numbers in the figure below indicate the
order of tightening.
JS00481A
Cap screws which have had Loctite used (white residue remains after removal) should be cleaned with light oil or
suitable cleaning solvent and dried. Apply 2-3 drops of Loctite to the thread portion of the cap screw and then tigh-
ten.
Torque table
Tighten cap screws and nuts according to the table below if there are no other special instructions.
Cap Screw Name Size (Size) M6 M8 M10 M12 M14 M16 M18 M20
Cap Screw
Spanner
[mm] 10 13 17 19 22 24 27 30
[in.] 0.39 0.51 0.67 0.75 0.87 0.95 1.06 1.18
Tightening
torque
[Nm] 6.9 19.6 39.2 58.8 98.1 157.2 196.0 274.0
[lb-ft] 5.1 14.5 29.0 43.4 72.5 116.0 144.6 202.4
Socket Head
Cap Screw
Spanner
[mm] 5 6 8 10 12 14 14 17
[in.] 0.20 0.24 0.32 0.39 0.47 0.55 0.55 0.67
Tightening
torque
[Nm] 8.8 21.6 42.1 78.4 117.6 176.4 245.0 343.0
[lb-ft] 6.5 15.9 31.1 57.8 86.8 130.1 180.8 253.1
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