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.
Classification: Zirconium and articles thereof nesoi
NSN 7035-01-419-4317
NSN 5855-01-091-9966
NSN 5999-01-461-7893
NSN 6650-01-555-8349
NSN 6110-01-041-9488
NSN 5975-00-241-3657
NSN 6685-01-166-8078
NSN 5835-01-485-0210
NSN 4140-00-064-5360
NSN 6150-01-299-5227
NSN 5945-01-341-5117
NSN 6105-00-639-6857