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 6220-01-275-8548
NSN 5905-00-907-9014
NSN 5996-01-065-0939
NSN 5935-01-365-1628
NSN 5975-00-701-8061
NSN 6150-01-112-3161
NSN 5925-00-827-4964
NSN 6320-00-343-1798
NSN 5965-01-398-0779
NSN 6685-01-474-5780
NSN 6240-01-580-1345
NSN 5960-00-487-5056