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 5935-01-501-3917
NSN 6320-01-159-2211
NSN 5910-00-113-4409
NSN 6610-01-628-6044
NSN 5855-01-294-2804
NSN 5920-00-981-5803
NSN 5985-01-325-0494
NSN 5925-00-808-7357
NSN 6130-01-419-0328
NSN 6135-01-041-3829
NSN 5855-01-286-9928
NSN 6320-00-483-0451