A rivet is a permanent mechanical fastener consists of a smooth cylindrical shaft with a head on one end. The end opposite to the head is called the tail. On installation the rivet is placed in a punched or drilled hole, and the tail is upset, or bucked (i.e., deformed), so that it expands to about 1.5 times the original shaft diameter, holding the rivet in place. We can supply various types of rivets with different shape, size, material and finish.