Multi Grip Rivets can substitute conventional rivets in applications where the thickness of the riveted material varies. One Multi Grip Rivet has the grip range of different rivet sizes. One Multi Grip Rivet can be used as an equivalent for at least three different rivet sizes. The hat of MultiGrip Rivets in this selection is an Aluminum Alloy, and the mandrel of the rivet is made of Steel. A special treatment applied to the rivet insures the mandrel will be encased by the rivet during application.