A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
NSN 5925-01-464-4551
NSN 6150-01-435-6554
NSN 5945-00-915-5685
NSN 5835-01-555-8963
NSN 6110-01-235-2913
NSN 5998-00-959-4539
NSN 6620-01-234-1799
NSN 6320-00-098-2858
NSN 5985-01-572-1239
NSN 5855-01-400-1590
NSN 6240-00-518-3541
NSN 6645-00-474-5689