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 5945-00-721-0199
NSN 5996-01-188-7548
NSN 5998-00-407-7065
NSN 6320-01-160-8578
NSN 5999-01-431-4195
NSN 5895-01-530-8914
NSN 5985-01-468-1560
NSN 6220-00-493-3188
NSN 5985-01-534-6500
NSN 5996-01-145-4357
NSN 5965-01-202-1007
NSN 6320-01-215-2284