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 5999-01-509-0219
NSN 5905-00-931-7982
NSN 6130-01-097-6363
NSN 6320-01-578-6006
NSN 6105-00-111-3353
NSN 6240-01-075-6559
NSN 4140-00-538-1226
NSN 5920-01-141-5706
NSN 6645-01-385-7033
NSN 6685-01-232-9965
NSN 6150-01-390-8816
NSN 7035-01-335-8872