An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also bolt, externally relieved body and bolt, internal wrenching.
Classification: Threaded fasteners of aluminum
NSN 6620-01-139-6455
NSN 5905-00-205-2595
NSN 5915-00-446-4143
NSN 5990-01-321-2997
NSN 5999-00-788-2883
NSN 5998-01-393-5103
NSN 5996-00-821-8136
NSN 5998-01-234-3599
NSN 6135-01-413-4747
NSN 6685-01-445-3909
NSN 5999-01-075-7804
NSN 5998-00-518-5118