1.Pin is designed to serve as both a spacer and a pilot pin.When squeezing action embeds its head into a hold in a metal sheet, displaced material of the sheet is compelled to flow into the groove of the pinhead for self-clinching.
10.A fastener consisting of a threaded pin or rod with a head at one end, designed to be inserted through holes in assembled parts and secured by a mated nut that is tightened by applying torque.