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 5960-01-226-0342
NSN 6620-00-181-6391
NSN 5950-01-472-2196
NSN 5960-01-077-4553
NSN 5935-00-197-9463
NSN 6145-00-868-8763
NSN 6645-00-372-2618
NSN 5835-01-366-5906
NSN 5915-00-840-7323
NSN 6685-01-356-8044
NSN 6145-01-110-2746
NSN 5965-00-646-4678