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🛠️ Seal the deal with copper precision – don’t let leaks hold you back!
The MuHize Copper Washers Kit offers 150 high-quality flat copper washers in 8 metric sizes (M6 to M20), engineered for superior sealing in automotive fuel lines, oil pan repairs, and hydraulic fittings. Crafted from corrosion-resistant copper, these washers provide enhanced heat resistance and leak prevention, making them an essential toolkit upgrade for professionals demanding reliability and durability.

| ASIN | B0892S4Y3T |
| Best Sellers Rank | #323,838 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,599 in Flat Washers |
| Brand | MuHize |
| Color | Bronze |
| Compatible Groove Diameter | 19 millimeters |
| Customer Reviews | 4.6 4.6 out of 5 stars (441) |
| Exterior Finish | Copper |
| Fastener Size | M5, M6, M8, M10, M12, M14, M16, M20 |
| Fastener Type | Flat Washer |
| Finish Types | Copper |
| Item Highlight | Metric M5 to M20 Sealing Washers with Rustproof & High-Temperature Resistance for Automotive Oil Pan, Hydraulic Fittings |
| Manufacturer | Muhize |
| Material Type | Copper |
| Metal Type | Copper |
| Model | MUWASHER-COP300 |
| Number Of Items | 300 |
| Number of Packs | 1 |
| Number of Pieces | 300 |
| Part Number | MUWASHER-COP300 |
| Screw Head Style | Flat |
| Set Name | MuHize Copper Washers Kit 300PCS 12 Sizes |
| Size Name | M5, M6, M8, M10, M12, M14, M16, M20 |
| Thread Size | M5, M6, M8, M10, M12, M14, M16, M20 |
| Unit Count | 1 Count |
| Washer Application | automotive, marine, plumbing |
| Washer Compatibility | metric bolts |
| Washer Type | Flat |
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