Internal drive ribbed
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.
Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 5910-00-011-2583
NSN 5925-01-634-0664
NSN 5935-01-463-5508
NSN 6150-01-229-6816
NSN 6240-01-120-3533
NSN 5996-01-315-6032
NSN 5895-01-274-7460
NSN 6110-01-621-2972
NSN 6645-00-233-4286
NSN 6645-01-465-4915
NSN 5999-00-104-1273
NSN 6145-00-577-8480