Hex Bolt And Nut Set

A hex bolt and nut set is a matched pair for clamping two or more parts together. The bolt has a hexagonal head, and the nut threads onto the bolt to tighten the joint.

A hex bolt and nut set fastens two or more parts through a drilled hole. The bolt takes the nut of the same thread and class, and a washer can be added under the head or nut. It suits general engineering and structural work.

Hex bolts and nuts are often made in carbon steel, stainless steel or alloy steel. Carbon steel is common for general use, stainless steel resists corrosion, and alloy steel gives higher strength.

This is a general guide to checking this kind of part. It says nothing about any supplier's parts.

Ask for a certificate of conformance for the bolt and nut. On receipt, check that the nut runs freely on the bolt, the head and nut markings are clear, and the threads are free from damage.