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 7035-01-544-0535
NSN 6620-00-245-6164
NSN 5975-00-917-4430
NSN 5990-00-454-6250
NSN 6145-01-624-7935
NSN 6130-00-426-0058
NSN 6240-01-104-5085
NSN 6240-01-100-7105
NSN 2925-01-327-3069
NSN 6620-01-210-4401
NSN 4140-00-525-3197
NSN 6685-01-125-0026