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 5920-01-396-1147
NSN 6105-01-224-7258
NSN 5835-01-013-9321
NSN 6645-01-659-1583
NSN 5910-00-227-0697
NSN 4140-01-134-6256
NSN 5925-01-600-8773
NSN 6145-01-401-3713
NSN 5998-01-573-2885
NSN 6320-01-227-2648
NSN 6145-00-753-2264
NSN 5950-01-255-7433