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 4140-01-088-4892
NSN 6105-01-028-2234
NSN 6645-01-313-3139
NSN 5990-01-501-2579
NSN 2925-01-055-7607
NSN 6240-00-179-5731
NSN 5835-01-386-4027
NSN 7035-00-096-9986
NSN 6650-01-417-8143
NSN 5945-01-218-5645
NSN 5945-00-276-9274
NSN 6145-01-308-5772