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 6620-01-058-8800
NSN 6240-00-984-3354
NSN 6645-01-255-9886
NSN 6645-01-310-2949
NSN 5925-00-545-8022
NSN 5925-01-019-8911
NSN 5935-00-170-7173
NSN 6240-01-033-8721
NSN 6610-01-236-2510
NSN 6320-01-115-4404
NSN 6145-01-272-4894
NSN 7035-01-072-8872