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 5950-00-660-9497
NSN 5930-01-369-7563
NSN 5945-01-270-8624
NSN 6220-01-322-7443
NSN 5855-01-095-5299
NSN 5945-01-314-4135
NSN 5960-01-336-5459
NSN 5975-00-464-7535
NSN 6685-00-381-8551
NSN 6685-00-548-5460
NSN 6110-01-300-9493
NSN 4140-00-192-8789