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 6645-01-386-6311
NSN 5965-01-522-2838
NSN 6240-01-258-5829
NSN 2925-01-113-6904
NSN 6610-00-935-7131
NSN 5895-01-300-9395
NSN 4140-01-517-9148
NSN 5855-01-607-6521
NSN 6650-01-265-0650
NSN 5855-01-560-8186
NSN 5945-00-491-5218
NSN 5915-01-444-5873