
Copper/Brass/Stainless/Carbon Steel Plain/Zinc Plated Flat Gasket/Rubber/Square Insulating/Heavy/Light/Shim/Star/Serrated Earthing/Lock Washer. We supply factory direct washers with rich types for your selection, including Flat/Square Insulating/Heavy/Light/Shim/Star/Internal Serrated/External Serrated/Earthing/Contact/Lock Washer, etc. Comprehensive Material Options: Available in Carbon Steel, Stainless Steel, Brass, Rubber, and Copper. Diverse Finish Selection: Includes Zinc Plated, Black Oxide, Dacromet, Hot Dip Galvanized, and more. OEM/ODM Service: Professional manufacturer offering full customization from samples, designs, or minor adjustments. Factory direct supply with fast shipment. Our annual production capacity reaches 8000 tons of fasteners. We are certified with ISO9001, CE and other qualifications. Established back in 2004, we have accumulated more than 20 years of experience in fastener production. Our thoughtful all round after sales support helps you get rid of every potential concern. One-Stop Sourcing. We look forward to establishing a long-term partnership with you. We accept OEM and ODM customization. Free of charge samples are offered for your quality inspection, buyers only need to bear the courier freight. Internal serrated&External serrated lock washer:Offer anti loose locking effect for automobile fasteners, pipeline fittings and mechanical equipment. Flat washer: Widely used in machinery, automobile parts and building fastener assembly for load bearing and friction reduction.