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 4140-01-647-0707
NSN 6240-01-519-8781
NSN 6105-01-485-9902
NSN 5999-00-858-4270
NSN 6610-00-976-3935
NSN 6650-01-555-0896
NSN 5996-01-551-8834
NSN 6240-01-191-5643
NSN 5996-00-116-7498
NSN 5925-01-519-3969
NSN 5855-00-560-0110
NSN 6685-01-083-2004