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 6650-00-283-0978
NSN 6240-00-991-6929
NSN 6220-00-772-5176
NSN 6650-00-859-1859
NSN 6685-01-409-2748
NSN 5945-00-802-4579
NSN 6650-01-144-4065
NSN 5999-00-950-8202
NSN 5895-00-847-4751
NSN 6105-01-156-0167
NSN 6620-00-943-0449
NSN 6645-00-704-3630