Concentric hole in head dia. 0.250 in.; depth of hole 0.650 in.
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 4140-01-191-1247
NSN 5920-01-198-2222
NSN 5999-01-485-3950
NSN 5998-00-661-0380
NSN 5985-01-036-5713
NSN 4140-00-068-0267
NSN 6105-00-292-4110
NSN 5990-01-231-1214
NSN 5998-00-126-9849
NSN 4140-00-067-7460
NSN 7035-00-104-7613
NSN 5835-01-511-5337