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 5855-01-480-3194
NSN 6220-00-232-9706
NSN 5915-01-146-5543
NSN 6645-00-664-4665
NSN 6110-01-589-8485
NSN 6110-01-103-4046
NSN 7035-01-432-1163
NSN 6685-00-016-9698
NSN 6135-00-437-5182
NSN 6130-01-554-5408
NSN 6610-00-557-0900
NSN 5910-01-590-1695