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 5855-00-256-5562
NSN 5915-01-050-7361
NSN 6110-01-400-4207
NSN 6685-01-490-0962
NSN 7035-01-357-4928
NSN 6645-00-171-9639
NSN 2925-01-072-7101
NSN 6645-01-060-7988
NSN 5895-01-486-3433
NSN 6110-01-014-3840
NSN 5895-01-362-8195
NSN 4140-01-435-6540