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 6685-01-457-9534
NSN 5905-00-446-0434
NSN 6105-01-118-1074
NSN 2925-01-368-5773
NSN 5996-01-227-4496
NSN 6645-01-413-8003
NSN 6320-01-458-9567
NSN 6610-01-165-3750
NSN 6145-00-462-7222
NSN 6135-01-290-1594
NSN 5835-00-307-3111
NSN 4140-00-021-2807