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 5935-01-577-9479
NSN 6135-00-613-1068
NSN 5905-01-382-9375
NSN 5930-00-890-5811
NSN 5855-00-125-0780
NSN 6685-01-109-7208
NSN 5905-00-082-1450
NSN 6650-00-195-7519
NSN 5990-01-382-5364
NSN 6650-01-361-6812
NSN 5930-00-254-2967
NSN 6145-01-573-3328