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 4140-00-451-8374
NSN 5985-01-560-5630
NSN 6610-00-594-6372
NSN 6620-00-153-0982
NSN 5985-01-064-3170
NSN 5895-01-121-0114
NSN 5895-01-328-8045
NSN 5920-00-977-5854
NSN 5930-01-351-5752
NSN 6150-00-901-3200
NSN 6610-00-186-9180
NSN 5985-01-305-1193