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 4140-01-468-9694
NSN 2925-01-364-7926
NSN 5965-01-398-8871
NSN 5990-01-617-5156
NSN 5999-00-491-4809
NSN 2925-01-285-7163
NSN 6620-00-192-4855
NSN 6150-00-812-7928
NSN 6645-01-157-9080
NSN 6130-01-289-0824
NSN 7035-00-731-8729
NSN 7035-01-416-5910