Used on weaponsight
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 6650-01-275-9778
NSN 5950-00-799-3610
NSN 6620-01-533-1059
NSN 6645-00-246-4934
NSN 5965-01-641-0237
NSN 5895-00-790-2785
NSN 6110-01-144-4376
NSN 2925-00-982-0409
NSN 5910-00-984-3944
NSN 5996-01-417-8669
NSN 5945-00-465-4743
NSN 5920-01-644-9694