Rivet
A rivet is a mechanical fastener consisting of a smooth cylindrical shaft with heads on either end. The heads are somewhat larger than the diameter of the hole into which the rivet has been inserted. Generally one head is factory formed. The other is formed by flattening out the metal after the rivet has been inserted.There are a number of types of rivet: blind rivets, Open End Blind Rivets, Closed End Blind Rivets, Multi-grip Rivet, grooved type, Peel Type Blind Rivet, Plastic Rivet, drive rivet.
See also: Rosie the Riveter