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 6220-00-023-4344
NSN 4140-01-421-1132
NSN 5895-00-187-2850
NSN 2925-01-231-6312
NSN 6135-00-488-4478
NSN 5930-01-151-5451
NSN 6150-01-352-6915
NSN 6135-01-375-2624
NSN 5996-00-690-7974
NSN 6130-01-062-0073
NSN 2925-00-247-6248
NSN 5985-01-128-2757