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 4140-01-044-5118
NSN 5835-01-350-0566
NSN 5915-01-394-3860
NSN 7035-00-442-1869
NSN 5985-00-156-5837
NSN 5975-00-753-7669
NSN 5990-01-626-3840
NSN 6650-00-492-9503
NSN 5985-00-189-0953
NSN 6105-01-181-6238
NSN 6135-01-648-4875
NSN 7035-00-753-0695