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 5915-01-388-7604
NSN 5905-00-400-4502
NSN 5920-01-437-7513
NSN 6220-00-333-2433
NSN 6620-00-079-0311
NSN 5950-01-602-9650
NSN 7035-01-102-8111
NSN 5998-01-323-7549
NSN 6145-01-046-5565
NSN 6220-00-041-0083
NSN 4140-00-137-2493
NSN 5855-00-548-4742