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 5990-00-689-5736
NSN 5855-01-533-7051
NSN 5945-01-323-7171
NSN 6130-01-048-6468
NSN 6620-00-062-9722
NSN 6105-00-211-4577
NSN 5895-01-004-9861
NSN 5930-01-050-4326
NSN 5905-01-613-2994
NSN 4140-01-056-3654
NSN 6685-01-095-0278
NSN 6645-01-343-1676