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Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Fasteners)
Thread Size
Thread Size
Class 8.8 Bolts, Screws and Studs with
Regular Height Nuts
Regular Height Nuts
(Class 8 or Stronger Nuts)
Class 10.9 Bolts, Screws and Studs with
Regular Height Nuts
Regular Height Nuts
(Class 10 or Stronger Nuts)
M5 X 0.8 57 + 6 in–lb 644 + 68 N–cm 78 + 8 in–lb 881 + 90 N–cm
M6 X 1.0 96 + 10 in–lb 1085 + 113 N–cm 133 + 14 in–lb 1503 + 158 N–cm
M8 X 1.25 19 + 2 ft–lb 26 + 3 N–m 28 + 3 ft–lb 38 + 4 N–m
M10 X 1.5 38 + 4 ft–lb 52 + 5 N–m 54 + 6 ft–lb 73 + 8 N–m
M12 X 1.75 66 + 7 ft–lb 90 + 10 N–m 93 + 10 ft–lb 126 + 14 N–m
M16 X 2.0 166 + 17 ft–lb 225 + 23 N–m 229 + 23 ft–lb 310 + 31 N–m
M20 X 2.5 325 + 33 ft–lb 440 + 45 N–m 450 + 46 ft–lb 610 + 62 N–m
Product Records
and Maintenance
NOTE: Torque values may have to be reduced when
NOTE: The nominal torque values listed above are
installing fasteners into threaded aluminum or brass.
based on 75% of the minimum proof load specified in
The specific torque value should be determined based
SAE J1199. The tolerance is approximately +
10% of the
on the fastener size, the aluminum or base material
nominal torque value.
strength, length of thread engagement, etc.
NOTE: Reduce torque values listed in the table above
by 25% for lubricated fasteners. Lubricated fasteners
are defined as threads coated with a lubricant such as
engine oil or thread sealant such as Loctite.
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