Fafeicy 50pcs Pure Copper Cup Washers, Flat Washers Metal Washers Assorted Washers Kit for Home, Decoration, General Repair(M5), Rivet Nuts

• High Concentricity: The screw washer is made of pure copper material, with standard concentricity, to ensure that after installation, it is closely fitted with the bolt and the connected part, and improve the connection stability.
• Smooth Appearance: Pure copper gasket after fine processing, showing a smooth texture, not only beautiful, but also reduce the coefficient of friction, easy to install and disassemble.
• Oxidation Endurance: Pure copper material has good oxidation endurance, suitable for various environments, effectively protect bolts and connected parts, extend service life.
• Excellent Electrical Conductivity: The pure copper gasket has excellent electrical conductivity, which is suitable for the connection parts that need to conduct electricity, reduce the touch impedance and improve the conductive effect.
• Large Shape Bearing: The bearing shape of the bolt is larger, so that the pure copper gasket can withstand greater pressure, improve the stability and bearing capacity of the connector.

Specification: Item Type: Countersunk Screw Washer Material: Pure Copper Model: Inner Diameter Approx.,Outer Diameter Approx., Thickness Approx., Counterbore Angle, Single Weight Approx.: M3: 3.1mm/0.1in, 7.9mm/0.3in, 2.05mm/0.1in, 90°, 0.52g/ 0.02oz M4: 4.1mm/0.2in, 9.9mm/0.4in, 2.5mm/0.1in, 90°, 0.88g/ 0.03 oz M5: 5.1mm/0.2in, 11.9mm/0.5in, 3.2mm/0.1in, 90°, 1.63g/0.06 oz M6: 6.1mm/0.2in, 13.9mm/0.5in, 3.5mm/0.1in, 90°, 2.35g/0.08 oz Package List: 50 x Countersunk Washers