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 5950-01-570-4438
NSN 5960-00-971-8432
NSN 5999-00-960-0201
NSN 6130-01-382-6871
NSN 6135-00-122-2420
NSN 6150-01-180-7385
NSN 5975-00-150-6400
NSN 5920-01-010-3293
NSN 5990-01-400-3299
NSN 5999-00-515-7354
NSN 6240-00-156-1607
NSN 6645-01-576-6733