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 2925-01-629-9416
NSN 6240-00-762-7456
NSN 6620-00-962-1526
NSN 6645-00-337-8276
NSN 6110-00-179-9996
NSN 5925-01-634-0664
NSN 5999-01-250-5644
NSN 5835-01-426-6573
NSN 5985-01-480-2392
NSN 6685-01-221-4605
NSN 6145-01-014-8350
NSN 5965-00-603-4983