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 4140-00-720-4993
NSN 5945-00-405-5006
NSN 6110-00-063-8073
NSN 6650-01-493-9985
NSN 7035-01-040-6373
NSN 6685-01-445-1055
NSN 6145-00-570-0516
NSN 2925-00-105-3907
NSN 5910-01-393-0754
NSN 6685-01-023-7148
NSN 6320-01-415-0953
NSN 5950-01-168-7838