Material: Ethylene propylene diene rubber Outer diameter: 6 mm Washer type: Flat washer Exterior finish: Plain Fastener size: M6 Product thickness: 6 mm Thickness = for 6mm ■ Shape: Resin/rubber washer A round washer made of resin or rubber that is placed between the seating surface of a bolt or nut and the mating material when fastening bolts and nuts. It is used to prevent damage to the mating material during fastening and for electrical insulation. ■ Material: EPDM (Ethylene propylene rubber) Compared to metal materials, resin is lightweight, has excellent corrosion resistance, and eliminates the worry of corrosion. It also has excellent chemical resistance and insulation properties and is not magnetic. Therefore, it is used in various fields such as the semiconductor and automotive fields. Ethylene propylene rubber (EPDM) is excellent in weather resistance, cold resistance, ozone resistance, aging resistance, and solvent resistance, as well as in rebound elasticity and electrical performance. ■ Surface treatment: Plain No surface treatment/plating has been applied. Therefore, the corrosion resistance and appearance are the characteristics and color of the material itself. \ ❤️ Free shipping on all items ❤️ / ◎ Immediate purchase, silent purchase at midnight OK! ◎ Follow & bundle discount available ♪ We try to ship within 24 hours! All products are unopened, unused, and only opened for product photography. 2259 350