Used on aircraft
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
NSN 6220-01-141-8200
NSN 6610-01-200-6861
NSN 6620-01-633-8443
NSN 6620-00-516-3204
NSN 5975-00-213-5145
NSN 6145-01-435-3837
NSN 2925-00-076-7691
NSN 6130-01-358-4064
NSN 5975-01-616-9617
NSN 5998-00-453-3796
NSN 6685-01-207-8176
NSN 5990-00-104-4903