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 7035-01-182-1086
NSN 6645-00-677-4354
NSN 5999-01-452-4204
NSN 6650-01-372-3730
NSN 5965-01-215-0993
NSN 7035-00-215-3272
NSN 6110-01-267-5122
NSN 5835-00-847-7277
NSN 5965-00-081-9412
NSN 6220-00-872-1134
NSN 6610-01-464-3037
NSN 5960-01-570-8605