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 5855-01-266-1645
NSN 5985-00-116-1944
NSN 5990-01-507-7495
NSN 5998-01-046-2943
NSN 5996-01-426-8531
NSN 5950-00-280-2560
NSN 5855-01-440-1768
NSN 6645-00-171-9639
NSN 6650-01-206-3584
NSN 4140-01-461-2350
NSN 5855-01-417-3250
NSN 6645-01-340-0892