Taper Washer

A taper washer is a washer with a bevelled face. It sits under a nut or bolt head on an angled surface and spreads the load.

A taper washer sits under a bolt head or nut on a sloping or angled surface and squares the bearing face to the fastener. It often matches a bolt of the same thread and class, and a flat washer can be added under it. The washer is set with the same spanner as the bolt.

This kind of washer is often made in stainless steel 304 or stainless steel 316. Grade 304 suits general indoor and outdoor use. Grade 316 gives better resistance to salt and chemical exposure.

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 with the material grade and dimensions. On receipt, check the bevel angle, the hole size and the surface for cracks or burrs.