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 6620-00-730-8699
NSN 6620-00-946-2491
NSN 6105-00-109-2311
NSN 5985-00-155-5991
NSN 6610-01-406-4985
NSN 5975-01-057-1170
NSN 6130-00-092-7574
NSN 5905-00-281-5442
NSN 6145-01-169-6487
NSN 5975-01-014-6161
NSN 6685-01-145-3938
NSN 6650-01-484-9505