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 6110-01-281-7274
NSN 6220-00-789-5880
NSN 5998-00-925-2992
NSN 5895-01-522-8023
NSN 5996-01-456-6007
NSN 6685-00-404-8444
NSN 5965-01-580-6601
NSN 5930-01-013-3632
NSN 6685-01-059-1769
NSN 5950-01-521-3985
NSN 6130-01-139-3701
NSN 6240-00-197-6819