What is a blind rivet?

A blind rivet is a low-cost permanent fastening system designed to join two or more pieces of material together where only one side is accessible. The term ‘blind rivets” comes from the fact that you are unable to see the other side.

Materials can be the same or different.

A blind rivet consists of two parts: –

• The body (also referred to as the shank)

• The mandrel (sometimes called the nail or rivet stem)

rivet diagram

The rivet mandrel is manufactured from wire in a similar process to nails. During manufacture, the rivet mandrel is crimped to produce the breakpoint, or more commonly referred to as where the rivet ‘snaps’ or ‘pops’.

The materials for each part can be made of different materials to give a variety of combinations. The most popular combination used throughout the UK and Ireland is an aluminium body on a steel mandrel.

What is a blind rivet nut?

A blind rivet nut, also known as a rivet nut, nut-sert or riv-nut, is a one-piece internally threaded and counterbored tubular rivet, used to create highly durable threads particularly in thin materials where only one side is accessible. A blind rivet nut can create a strong thread in:

• thin metal sheet/profiles where thread forming is not possible

• thick metal sheet/profiles that are too hard for thread forming

• composite or plastic materials where no thread forming is possible

• box sections or enclosed applications where access is restricted

• on-site repairs to damaged or stripped threads