M3 Bolt Torque — 1.3 ft-lbs (1.8 N·m)
Reference Class 8.8 torque for a M3 hex bolt: 1.3 ft-lbs (1.8 N·m). Lubricated: 1 ft-lbs (1 N·m).
Result
Answer
1.3 ft-lbs (1.8 N·m)
Standard
Torque1.3 ft-lbs / 1.8 N·m
Torque (lubricated est.)1 ft-lbs / 1 N·m
Bolt ClassClass 8.8
ThreadM3x0.5
Recommended Drive1/4" drive
A M3x0.5 Class 8.8 bolt: reference torque 1.3 ft-lbs (1.8 N·m). Lubricated estimate: 1 ft-lbs (1 N·m). Always verify with the fastener manufacturer and use a calibrated torque wrench.
Note
Reference value from published fastener data. Always verify with the fastener manufacturer for critical applications.
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About M3 Bolt Torque
An M3 hex bolt (Class 8.8): reference torque is 1.3 ft-lbs (1.8 N·m), with a lubricated estimate of 1 ft-lbs (1 N·m). Standard thread pitch is 0.5mm. Use a 1/4" drive torque wrench. Actual torque depends on thread condition, lubrication, and joint design — always verify with the fastener manufacturer.