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 4140-00-328-1527
NSN 6645-01-561-5930
NSN 6130-01-005-7237
NSN 5945-01-090-5338
NSN 5990-01-411-5930
NSN 5910-01-139-6090
NSN 6645-00-998-7820
NSN 5920-01-061-4608
NSN 2925-01-157-9204
NSN 6130-01-659-0290
NSN 5996-01-353-8017
NSN 6650-01-188-8028