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🔩 Seal the deal with copper precision – don’t let leaks hold you back!
This Magicave kit includes 330 premium pure copper flat washers in 12 metric sizes (M5-M20), engineered for superior corrosion resistance and thermal conductivity. Designed to withstand extreme heat up to 1083°C, these crush washers provide a reliable, leak-proof seal for automotive, marine, plumbing, and industrial applications. Packaged in a sturdy, labeled organizer, this set ensures quick access and neat storage, making it an essential upgrade for professionals and DIY enthusiasts alike.
| ASIN | B0DJPB3821 |
| Best Sellers Rank | 11,404 in DIY & Tools ( See Top 100 in DIY & Tools ) 57 in Washers |
| Brand Name | Magicave |
| Colour | Copper Washers-330Pcs |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 501 Reviews |
| Exterior Finish | Copper |
| Exterior finish | Copper |
| Fastener Size | M5 M6 M8 M10 M12 M14 M16 M20 |
| Fastener Type | flat |
| Fastener size | M5 M6 M8 M10 M12 M14 M16 M20 |
| Finish Types | Glossy |
| Item Thickness | 0.35 Millimetres |
| Item Weight | 227 g |
| Item thickness | 0.35 Millimetres |
| Manufacturer | Magicave |
| Manufacturer Part Number | M5 M6 M8 M10 M12 M14 M16 M20 |
| Material | Copper |
| Material Type | Copper |
| Metal | Copper |
| Model Number | Copper Washers |
| Number Of Items | 330 |
| Number of Packs | 1 |
| Number of Pieces | 330 |
| Product Warranty | 2 year |
| Screw Head Style | Flat |
| Set Name | Copper Washers Kit (M5-M20, 330pcs) |
| Size | M5, M6, M8, M10, M12, M14, M16, M20 |
| Thread Size | M5, M6, M8, M10, M12, M14, M16, M20 |
| Unit Count | 330.0 count |
| Washer Compatibility | metric bolts, metric screws |
| Washer Type | Flat |
| Washer type | Flat |
J**I
Great
Great
P**T
Washers
Good product
A**R
Good selection
Very good selection of washers fit well
A**R
Great value
Great price
M**.
Goos set to have around teh garage
Good set too have available in the garage and I use them as my "get me out of trouble' set however when doing car brakes or sump plugs I dont rely on these as they are only 1mm thick. However that's no fault as that is the description of the product.
A**R
Nice!
Perfect, as described and all sizes possibly needed.
A**R
Squish them washers!!!👌👌👌
Won't be struggling to find copper washers for a while there a fact, good quality, fast shipping bargain.
J**B
Good kit
Used a few from the kit already, thin like others said but haven’t had any leaks yet so they work.
S**S
Exact Match to OEM Crush Washers
I use these thin copper washers as crush washers on both my wife's and my motorcycles oil drain plugs with every oil change, and on the lower water pump bolts with every coolant change. These copper washers exactly match the OEM washers. The assortment is extensive, and a great value for the money. I'm very happy with this purchase.
B**K
Good
Good assortment of copper washers.
K**T
Washers
These work as described , washers
D**S
Could use more one inch plus size
Good deal on washers
Trustpilot
1 month ago
2 months ago