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 6645-01-450-7271
NSN 6145-00-955-1993
NSN 5855-01-344-8688
NSN 6240-01-357-7925
NSN 6240-01-073-4487
NSN 6145-01-039-7677
NSN 6645-00-837-2267
NSN 5975-00-926-3073
NSN 6650-01-470-9258
NSN 5965-01-191-0735
NSN 5930-00-728-1655
NSN 6240-00-168-0411