Bearing surface of head grooved to 0.394 in. Min, 0.396 in. Max dia, 0.092 in. Min, 0.097 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 5910-00-684-8343
NSN 6685-00-461-1902
NSN 5996-00-371-2817
NSN 5945-00-509-3530
NSN 6320-01-239-7647
NSN 5905-00-248-5902
NSN 5835-01-632-6627
NSN 5910-00-103-9681
NSN 6105-01-092-1484
NSN 6685-01-586-2250
NSN 5950-01-451-7682
NSN 7035-01-026-0117