Parallel Pin

A parallel pin is a solid cylindrical pin with a constant diameter. It aligns and holds two parts in position.

A parallel pin locates two parts in line and holds their position during assembly. It fits a reamed hole of matching diameter and is often set with a hammer or press. A dowel pin can also act as a pivot or a shear point in a joint.

This kind of pin is often made in steel or stainless steel. Steel pins can be hardened for wear resistance. Stainless steel pins suit outdoor or wet areas.

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

Ask for a mill test certificate if you need to confirm the material grade. On receipt, check the diameter and length against your order. Check the ends are chamfered and the surface is free from burrs.