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 6105-00-572-5403
NSN 6240-01-569-4482
NSN 5999-00-350-8440
NSN 6105-01-128-3153
NSN 5925-01-409-2616
NSN 5895-01-463-1940
NSN 5915-01-197-4824
NSN 6320-01-481-7322
NSN 5895-00-056-1512
NSN 5935-00-190-7517
NSN 6105-00-924-1476
NSN 5920-00-734-5519