Bearing surface of head to be grooved to 0.323 in. Min 0.325 in. Max diameter 0.050 in. Min 0.055 in. Max from top of head
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 2925-01-068-3844
NSN 5910-00-201-0027
NSN 5950-00-277-4701
NSN 5915-01-454-5650
NSN 6650-01-640-9370
NSN 5915-01-574-7969
NSN 6150-01-415-0916
NSN 6145-00-904-7563
NSN 5985-01-508-4398
NSN 6685-01-418-6095
NSN 6110-00-023-3661
NSN 6145-00-583-9989