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 5960-01-319-0276
NSN 4140-00-713-9320
NSN 6620-01-274-3423
NSN 6645-01-442-6476
NSN 5855-01-577-2581
NSN 6150-00-490-2514
NSN 5996-01-396-8829
NSN 5999-01-263-7665
NSN 5975-01-499-7542
NSN 6645-01-631-3451
NSN 6240-01-380-2127
NSN 5835-00-435-1428