A surgical fastener having a backspan, a pair of legs depending from the backspan, and a contact pad on the backspan. At least one of the pair of legs is configured to contact the contact pad to provide an indication of formation thereof. In particular, it is disclosed a surgical fastener (356), comprising:a backspan (360) defining an upper surface, a lower surface, a pair of side surfaces and a through hole (361) anda pair of conductive legs (362) depending from the backspan (360)wherein, when formed, legs (362) will extend through hole (361) and be capable of contacting conductive contact pads on a pusher and complete a circuit to provide an indication of fastener formation.
