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 5950-00-269-4805
NSN 5935-01-068-3228
NSN 5950-01-367-5398
NSN 6110-01-226-6983
NSN 6650-01-416-0473
NSN 5895-01-475-5790
NSN 5925-01-241-5091
NSN 5975-01-141-0103
NSN 6645-01-376-2336
NSN 6650-01-523-1686
NSN 6220-01-600-2860
NSN 5950-01-516-3623