An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.
NSN 4140-01-138-4889
NSN 5935-01-398-1838
NSN 6610-00-281-9516
NSN 5990-00-470-2535
NSN 5945-01-166-3131
NSN 6320-01-439-5264
NSN 5975-01-442-6471
NSN 5998-01-429-3799
NSN 5910-01-147-3682
NSN 6645-00-498-6869
NSN 6135-01-426-8282
NSN 5855-01-411-0189