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 5835-01-227-2318
NSN 5855-00-117-0857
NSN 6220-00-949-1931
NSN 6150-01-088-5229
NSN 6610-01-651-8659
NSN 6685-01-435-5158
NSN 6620-01-008-1654
NSN 5960-01-496-3712
NSN 5835-01-214-5402
NSN 5920-00-834-7834
NSN 2925-01-424-0235
NSN 5905-01-588-3785