Material steela
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 4140-01-350-3277
NSN 4140-00-480-8190
NSN 5930-00-964-0057
NSN 5950-00-045-9376
NSN 5905-00-486-7212
NSN 5975-01-519-2519
NSN 6620-01-179-4154
NSN 6320-01-116-3980
NSN 5930-01-564-6976
NSN 5905-00-824-1923
NSN 6110-00-177-8755
NSN 6320-01-335-8336