Description: Adopting the high-quality material that has good electrical conductivity and thermal conductivity, this red copper gasket set is practical and professional. Manufactured with the excellent workmanship, these red copper gaskets have burr-free, uniform and smooth surface, and with the dedicated storage box, they are easy to store and carry. Made of red copper, the gasket features no magnetic, high conductivity, thermal conductivity, and high hardness. There are many specifications, including M5/M6/M8/M10/M12/M14. Copper gasket set is great for sump plugs, water, fuel and hydraulic fittings. Item Name: Red Copper Washer Material: Red Copper Quantity: 200 Pieces Color: Solid Color Features: Small, Sealing, Multi-purpose Size Details: Box Size: 13cm x 6.8cm x 2.2cm/5.12" x 2.68" x 0.87" (Approx.) Notes: The quantity is about 200pcs, due to manual calculation, the quantity might has 1-5pcs more or less, hope you can understand, thank you. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 30 x M5 Washers (9mm x 1mm) 30 x M6 Washers (10mm x 1mm) 20 x M6 Washers (12mm x 1mm) 20 x M8 Washers (12mm x 1mm) 20 x M8 Washers (14mm x 1mm) 20 x M10 Washers (14mm x 1mm) 20 x M12 Washers (16mm x 1mm) 20 x M12 Washers (18mm x 1.5mm) 20 x M14 Washers (18mm x 1mm)