Question

why is torque important?
proper torque maintains joint and fastener reliability and product safety
proper torque insures correct clamping force.
proper torque protects the fastener from failure.
all of the above.

Explanation:

Proper torque indeed maintains joint and fastener reliability, ensuring product safety. It also insures correct clamping force and protects the fastener from failure. All these aspects highlight its importance.

Answer:

All of the above.