Groove 0.281 in. Wide by 0.218 in. Deep extends full height of head, thread end of bolt has diameter of 1.000 in. By 0.250 in. Lg; two slots 0.199 in. Wide by 0.281 in. Depth on thread end slots 67-1/2 degrees apart
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.
NSN 6135-01-485-3940
NSN 5910-01-336-7943
NSN 5915-01-133-7658
NSN 5999-01-052-7352
NSN 6150-01-293-2480
NSN 5835-01-346-9575
NSN 6320-00-790-4844
NSN 5950-01-339-3162
NSN 5855-00-079-2370
NSN 6320-01-227-2648
NSN 5975-00-872-2183
NSN 2925-01-633-4048