Unserrated; black phosphate & oil
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 5996-01-045-0955
NSN 6320-01-062-9351
NSN 5945-01-571-2547
NSN 6610-01-453-1610
NSN 5895-00-031-3591
NSN 6650-00-318-6033
NSN 5910-01-323-1150
NSN 5975-01-074-7860
NSN 6610-00-494-7276
NSN 5895-01-609-4538
NSN 5910-01-033-1404
NSN 5990-01-060-3687