Taper Pin

A taper pin is a solid pin with a gradual taper along its length. It aligns and locks two parts together by wedging into a matching tapered hole.

A taper pin aligns and locks two parts through a reamed hole. It is usually driven into place with a hammer and often removed with a drift punch. The hole is reamed to match the taper, and the pin is often secured with a nut or a cotter pin.

Taper pins are often made in steel or stainless steel. Steel can be heat treated for higher strength, while stainless steel offers corrosion resistance.

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 to confirm the pins meet the ordered specification. On receipt, check the taper angle and diameter against the drawing. Inspect for surface defects such as cracks or seams.