cotter joint

grabcad

A cotter joint, also known as a spigot and socket connection, utilizes a cotter pin to secure the parts together. This type of joint is commonly used in pipes, rods, and other structural elements due to its strength and ease of assembly. The cotter pin is inserted through a hole in the spigot end of one piece and then threaded through a slot in the socket end of another piece, before being bent or twisted to secure it in place.