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 2925-01-649-7543
NSN 5895-01-238-3663
NSN 6620-01-122-0238
NSN 6320-01-294-7161
NSN 5855-01-173-0808
NSN 6645-01-376-2336
NSN 5965-01-434-4095
NSN 7035-01-132-7209
NSN 5990-00-288-1820
NSN 6150-01-042-6431
NSN 5910-01-076-9419
NSN 6220-00-149-0977