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 5999-01-359-4243
NSN 5950-00-213-8687
NSN 6145-01-477-2654
NSN 5905-00-285-2866
NSN 4140-01-298-0149
NSN 5925-00-949-7359
NSN 5975-01-576-8693
NSN 6110-01-512-1487
NSN 5910-01-541-0156
NSN 5998-01-270-1079
NSN 6610-01-074-1289
NSN 6645-00-915-9397