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Introducing a pack of 4000 knurled locking safety washers, made by Beneri S.p.A. in Italy. These lock washers are designed with a thickness of 0.50mm and an inside diameter of 4.30mm, suitable for use in bolt diameters of 4mm and bolt grades of 8.8. The washers are made of carbon steel with a hardness of HRC 44-50 and finished with white zinc plating. These washers are essential for preventing loosening or loss of fasteners due to vibration and are perfect for various industrial applications.
