Plate Nut

A plate nut is a nut fixed to a plate, often with a threaded barrel or a flat base. It spreads load over a wider area than a plain nut.

A plate nut is a flat nut with a low profile. It suits tight spaces where a standard hex nut will not fit. It takes a bolt of the same thread and is often held with a spanner or a socket.

Plate nuts are often made in steel, sometimes with a plated finish. Stainless steel versions are used where corrosion matters.

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 check the thread runs clean. On receipt, check the plate is flat and the thread is undamaged.