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A4 nylon insert SS nut

Felt bowl nuts are a special type and standard of hexagonal nuts. The nut of the felt bowl is produced according to the DIN985 standard, and in the upper part, it has an edge on the holder of a plastic washer polymer. At the time of connecting the nut of the felt bowl on the screw, the screw thread of the spring washer is cut and the washer sticks on the surface of the screw. Therefore, in most applications on industrial machines with high vibrations, a felt bowl nut is used to prevent the opening of the nut connection on the screw.
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