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 6130-01-579-3994
NSN 6105-00-540-5616
NSN 5910-01-096-6174
NSN 5915-01-241-6526
NSN 5999-00-908-2380
NSN 6220-00-959-5698
NSN 6620-01-431-9176
NSN 5950-01-652-9772
NSN 6610-01-304-3226
NSN 5905-01-046-6789
NSN 6135-00-557-0174
NSN 5998-01-608-4192