Undercut type point on thread end
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
NSN 2925-01-615-2379
NSN 5999-01-181-4664
NSN 5960-01-487-2175
NSN 5915-00-952-3049
NSN 6145-01-072-3352
NSN 6110-01-062-0252
NSN 2925-00-142-0641
NSN 6135-01-602-8383
NSN 2925-01-486-8527
NSN 5835-00-226-7825
NSN 5990-01-104-6703
NSN 5920-01-461-2423