Wing Nut

A wing nut is a threaded fastener with two wings that can be turned by hand. It is used where frequent adjustment is needed without tools.

A wing nut tightens by hand on a bolt or stud where frequent adjustment is needed. Its two wings give a grip for finger turning, so it suits clamps, covers and jigs. It takes a bolt of the same thread and class, and a washer often sits under it.

This kind of nut is often made in brass, stainless steel 304, or stainless steel 316. Brass resists corrosion and gives a low friction turn. Stainless steel grades resist rust in damp or outdoor conditions.

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 if you need proof of material or dimensions. On receipt, check the thread with a gauge. Turn the nut by hand to check the wings and thread.