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 5950-01-263-1974
NSN 6685-01-592-3432
NSN 6240-01-267-5490
NSN 4140-01-275-1700
NSN 5835-00-085-2287
NSN 5960-01-418-8402
NSN 5835-00-010-1614
NSN 5996-00-509-5552
NSN 5835-01-424-0054
NSN 5925-01-557-9007
NSN 5960-00-275-7497
NSN 6645-00-991-8704