Check the listing for details. Star Nut Star lock Push-on Locking Washers Clips Fastener Assorted Set 340Pcs. Condition: New. Listed at 15.03 USD. Product Description Specification: Name : Internal Tooth Starlock Washers Material : 65Mn Metal Steel Color: Black Size: M3, M4, M5, M6, M8, M10, M12 Quantity:340 PCS Feature: 1. Choose from a wide range of sizes to meet different installation needs. 2. The starlock washer exerts a spring force between the fasteners head and the substrate to create more feiction and resistance to rotation. 3. Made of 65Mn metal steel, its high-quality and durable. 4. It is commonly used in our daily life and in industry. We can used in machinery equipment, industrial production of shock absorption and insulation. Size As Follow:7 sizes 60PCS：M3 60PCS：M4 60PCS：M5 50PCS：M6 50PCS：M8 40PCS：M10 20PCS：M12 Package Includes: 340PCS Starlock Washer 1PC Plastic Box