






🔩 Seal the deal with copper precision – don’t let leaks hold you back!
This 325-piece assortment of premium copper crush washers offers 10 metric sizes (M5 to M14) designed for superior sealing and durability. Crafted from high-quality red copper, these washers resist corrosion and heat, ensuring reliable performance across automotive, marine, hydraulic, and household uses. Packaged in a durable, transparent box with a detailed size guide, this kit is the ultimate go-to for professionals and DIYers seeking precision and longevity in every seal.







| Material | Copper |
| Outside Diameter | 0.35, 0.47, 0.55, 0.63, 0.71, 0.78 Inches |
| Washer Type | Flat |
| Exterior Finish | Copper |
| Fastener Size | M5, M6, M8, M10, M12, M14 |
| Item Thickness | 0.04, 0.06 Inches |
| Size | Copper_Washers_325Pcs |
| Metal Type | Copper |
| Brand | AKOSN |
| Number of Pieces | 325 |
| Item Diameter | 1E+1 Millimetres |
| Manufacturer | AKOSN |
| Number of Memory Sticks | 1 |
| Item Weight | 272 g |
| Item part number | Flat_Washer_001 |
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