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 5960-01-412-0619
NSN 4140-00-578-7726
NSN 5935-00-373-9350
NSN 5915-00-196-2723
NSN 6320-01-442-3428
NSN 5990-01-369-6915
NSN 5930-00-059-4990
NSN 6150-01-069-0927
NSN 5920-01-543-4441
NSN 5985-01-306-3340
NSN 5925-01-246-9620
NSN 5855-01-273-0927