Kalpataru Corporation

SOCKET HEAD ALLEN CAP SCREW

SS , MS CHEESE HEAD SLOTED SCREW.

A captive fastener is a special type of screw that’s able to lock into a pre-drilled hole to provide a secure and permanent hold. Like other screws, they feature a head on top and external threading on the sides. Captive screws are unique, however, because of their ability to be fastened and unfastened without removing the screw from the pilot hole in which it was installed.

A jam nut is a low profiletype of nut , typically hald tall as standard nut commonly know as lock nut.