Setting the torque
Setting the torque
Engineered joints require the torque to be accurately set. The clamp load produced during tightening is about 75% of the fastener’s proof load. Over tightening will damage threads and stretch the bolt, ruining the joint’s strength; see Hooke’s law.
If the hardware is Cadmium plated, or lubricated (or both) the torque is reduced by […]