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 6135-01-313-8323
NSN 5895-00-170-4568
NSN 5998-01-592-2771
NSN 4140-00-472-4615
NSN 6240-01-319-7632
NSN 5998-00-633-5169
NSN 5998-01-166-1339
NSN 5960-01-257-0225
NSN 5975-00-564-0476
NSN 6320-01-225-9963
NSN 5920-01-474-6004
NSN 6220-01-248-1927