【Material】This Internal Tooth Star Washer is made of 65Mn Spring Steel so it's sturdy and durable, also has great corrosion resistance for machinery equipment and substrate; Black Oxide Finished provides anti-corrosion and durability.
【Function】The washer exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
【Easy to Install】The washer creates a permanent installation and will lock on plastic or steel; The thickness of the washer is relatively thin, be careful when installing and do not use too much force.
【Wide Application】Internal Tooth Star Washer is widely used in product maintenance such as vehicles and wheels; Also in machinery, furniture, electrical appliances, electronic equipment, cars, sports equipment and industrial production of shock absorption and insulation.
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