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 6240-01-119-3760
NSN 6110-01-516-3094
NSN 6145-01-011-8251
NSN 5920-01-261-2856
NSN 6110-01-295-4383
NSN 5905-00-327-6913
NSN 2925-00-066-9700
NSN 6320-01-592-6248
NSN 6220-01-545-7153
NSN 5965-01-032-9146
NSN 6145-01-256-5301
NSN 6650-01-216-2707