Taper Round Nut

A taper round nut is a threaded fastener with a rounded body that tapers along its length. It is used where a nut must sit flush or locate into a tapered hole.

A taper round nut often centres or locks a part on a shaft or spindle. It can be matched with a mating thread of the same form and a spanner or socket that fits its outside shape.

This kind of nut is often made in stainless steel 304, which gives good corrosion resistance for indoor and outdoor use.

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 and a mill test certificate if the material grade matters. On receipt, check the thread form, the taper angle and the surface for cracks or burrs.