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 6645-01-544-9475
NSN 5999-01-619-8730
NSN 5960-01-533-5162
NSN 6240-00-762-7456
NSN 6685-00-138-7250
NSN 5935-01-291-2355
NSN 5996-01-199-2262
NSN 6130-01-508-2713
NSN 6610-00-292-9895
NSN 2925-01-224-1885
NSN 5990-00-036-6449
NSN 6145-01-466-2004