Bearing surface of head grooved to 0.472 in. Min 0.474 in. Max dia, 0.115 in. Min 0.120 in. Max lg 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 5990-00-832-9766
NSN 6145-01-158-8408
NSN 5950-01-014-4905
NSN 5945-01-046-9530
NSN 5965-01-573-2338
NSN 5895-01-505-1100
NSN 6110-00-679-5931
NSN 6130-00-053-2992
NSN 5905-01-173-8108
NSN 4140-00-270-8075
NSN 5965-00-594-3115
NSN 5930-01-520-9672