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 4140-00-277-1531
NSN 6135-01-487-0773
NSN 5905-00-206-1943
NSN 5990-01-050-1102
NSN 6685-01-254-5658
NSN 5960-01-160-3437
NSN 6610-01-435-5425
NSN 2925-01-359-4027
NSN 5910-01-381-9541
NSN 5835-00-804-0569
NSN 6110-01-237-6426
NSN 5960-01-444-8163