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 5920-00-226-0227
NSN 5855-01-234-5346
NSN 2925-00-394-2332
NSN 5855-00-797-8217
NSN 6620-01-415-5803
NSN 7035-01-245-2858
NSN 5965-00-170-5254
NSN 6150-01-476-8833
NSN 6135-01-633-8502
NSN 5835-01-250-2939
NSN 5945-00-466-3748
NSN 6150-01-644-4052