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 6645-01-390-6520
NSN 6240-01-285-0927
NSN 6145-01-011-3231
NSN 6145-01-082-3928
NSN 6220-01-233-1534
NSN 6150-00-904-3326
NSN 5915-00-665-2323
NSN 6620-00-088-8795
NSN 5855-00-688-9954
NSN 7035-00-052-2188
NSN 5855-01-154-3871
NSN 5905-00-100-5250