A rivet is a permanent mechanical Rivet, Semi tubular rivet, Insert thread nut,Rivet tool nut, Blind rivet stud, Blinding post screw fastener.rivet Before it is Rivet, Semi tubular rivet, Insert thread nut, Rivet tool nut, Blind rivet stud, Blinding post screw installed it rivet consists of a smooth cylindrical shaft with a head on one end.rivet The end opposite the head is Rivet, Semi tubular rivet, Insert thread nut, Rivet tool nut, Blind rivet stud, Blinding post screw called the buck-tail.rivet On installation the rivet is placed in a pre-drilled hole.rivet Then the tail is "upset" (i.e. deformed) so that it expands to about 1.5 times the original shaft rivet diameter Rivet, Semi tubular rivet, Insert thread nut, Rivet tool nut, Blind rivet stud, Blinding post screw and holds the rivet in place.rivet To distinguish between the two ends of the rivet, the original head is called Rivet, Semi tubular rivet, Insert thread nut, Rivet tool nut, Blind rivet stud, Blinding post screw the factory head rivet and the deformed end is Rivet, Semi tubular rivet, Insert thread nut, Rivet tool nut, Blind rivet stud, Blinding post screw called the shop rivet head or buck-tail rivet.