Special Features:

Tprocurement specification nas 621; radius to be tangent to shank at 18.5 degree angle; dimentions before lubrication; locking grooves to be ground or rolled at manufactureres option; conical surface of head to shank within .003 tir

Properties:

A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. a locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. the shank may include an external wrenching facility which breaks off at a predetermined applied torque.