Breakstem Rivet

A breakstem rivet is a blind fastener that joins two or more panels from one side. It has a mandrel that snaps off when the rivet is set. It often comes in aluminium, steel or a mix of both.

A breakstem rivet joins two or more sheets where only one side is accessible. It is set with a rivet gun that pulls the stem and snaps it off. It often matches the hole diameter and the total thickness of the parts.

This rivet is often made in aluminium or steel. Aluminium gives light weight and good corrosion resistance. Steel gives higher shear and tensile strength.

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 material certificate if the alloy matters. On receipt, check the rivet body and mandrel for cracks or damage. Confirm the rivet sets fully and the stem breaks cleanly.