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.
NSN 5985-01-116-3383
NSN 6650-01-381-1432
NSN 5925-01-180-0082
NSN 5985-01-012-2025
NSN 5905-01-025-2059
NSN 6650-01-328-6624
NSN 4140-01-014-3454
NSN 6130-01-657-2248
NSN 5960-01-359-6630
NSN 6620-01-020-2628
NSN 6145-00-248-4944
NSN 6240-01-240-7529