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 4140-00-396-0307
NSN 6650-01-587-8380
NSN 7035-01-067-8991
NSN 5965-01-283-6106
NSN 5996-01-262-4370
NSN 5910-01-647-5666
NSN 6650-00-717-8913
NSN 5920-00-974-4381
NSN 6645-01-364-0867
NSN 6320-00-925-0558
NSN 5965-01-622-3118
NSN 5910-01-567-3924