Undercut head 0.100 wide x 0.430 dia
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).
Classification: Threaded fasteners of aluminum
NSN 4140-01-114-3014
NSN 6220-01-038-8292
NSN 6620-01-285-4685
NSN 5935-01-349-9918
NSN 5895-00-879-4895
NSN 6620-01-479-2352
NSN 5950-01-302-8334
NSN 5915-01-426-1338
NSN 5905-01-321-0263
NSN 5915-01-089-9836
NSN 6645-01-277-9337
NSN 5905-00-179-1089