Snap fastener
A snap fastener, also called snap button, press button,[1] press stud,[1] press fastener, dome fastener, popper, snap and tich (or tich button), is a pair of interlocking discs, made out of a metal or plastic, commonly used in place of traditional buttons to fasten clothing and for similar purposes. A circular lip under one disc fits into a groove on the top of the other, holding them fast until a certain amount of force is applied. Different types of snaps can be attached to fabric or leather by riveting with a punch and die set specific to the type of rivet snaps used (striking the punch with a hammer to splay the tail), sewing, or plying with special snap pliers.
Snap fasteners are a noted detail in American Western wear and were also often chosen for children's clothing, as they are relatively easy for children to use compared with traditional buttons.
Four pieces of a typical rivet snap fastener: from upper left, the "eyelet" "socket", "cap", and "stud"
The socket and cap, the "female" parts of a riveted snap fastener
The eyelet and stud, the "male" parts of a riveted snap fastener
Tools used to apply a snap
