Bottom flat of head chamferred 45/47 degrees
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 undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.
Classification: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
NSN 6645-00-216-6126
NSN 5985-00-288-6001
NSN 6110-00-956-7472
NSN 6620-00-518-3595
NSN 5935-01-537-0234
NSN 6110-01-112-2322
NSN 5835-01-013-9321
NSN 6240-01-528-7873
NSN 4140-01-420-8318
NSN 5996-00-456-0895
NSN 6240-01-606-9998
NSN 5915-00-223-5308