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 5915-01-076-4538
NSN 6150-01-437-6288
NSN 5999-01-378-7546
NSN 6145-01-467-3244
NSN 5950-01-586-9013
NSN 5925-00-572-8348
NSN 5999-01-518-8160
NSN 5975-01-623-5150
NSN 6610-01-281-3662
NSN 6220-01-437-5659
NSN 2925-01-121-3355
NSN 5855-01-395-7429