---
product_id: 721349461
title: "330 Pieces 12 Sizes Copper Washers, Crush Washer, Premium Copper Metric Flat Washers, Copper Seal Washers Assortment Kit (M5 M6 M8 M10 M12 M14 M16 M20)"
brand: "magicave"
price: "€ 33.55"
currency: EUR
in_stock: true
category: "Magicave"
url: https://www.desertcart.pt/products/721349461-330-pieces-12-sizes-copper-washers-crush-washer-premium-copper
store_origin: PT
region: Portugal
---

# Withstands heat up to 1083°C Superior leak-proof sealing 330 pieces, 12 metric sizes 330 Pieces 12 Sizes Copper Washers, Crush Washer, Premium Copper Metric Flat Washers, Copper Seal Washers Assortment Kit (M5 M6 M8 M10 M12 M14 M16 M20)

**Brand:** magicave
**Price:** € 33.55
**Availability:** ✅ In Stock

## Summary

> 🔩 Seal the deal with copper precision – don’t let leaks hold you back!

## Quick Answers

- **What is this?** 330 Pieces 12 Sizes Copper Washers, Crush Washer, Premium Copper Metric Flat Washers, Copper Seal Washers Assortment Kit (M5 M6 M8 M10 M12 M14 M16 M20) by magicave
- **How much does it cost?** € 33.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/721349461-330-pieces-12-sizes-copper-washers-crush-washer-premium-copper)

## Best For

- magicave enthusiasts

## Why This Product

- Trusted magicave brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heat-Resistant Seal:** Endures extreme temperatures up to 1083°C without compromising integrity.
- • **Premium Pure Copper:** Corrosion-resistant and highly conductive for durability and performance.
- • **Complete Metric Range:** 12 sizes from M5 to M20 cover every repair need with precision fit.
- • **Versatile Application:** Perfect for automotive, marine, plumbing, and industrial uses—reduce leaks and vibration.
- • **Organized & Accessible:** Transparent, compartmentalized storage box keeps your workspace sleek and efficient.

## Overview

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.

## Description

Magicave 330 Pieces 12 Sizes Copper Washers, Crush Washer, Premium Copper Metric Flat Washers, Copper Seal Washers Assortment Kit (M5 M6 M8 M10 M12 M14 M16 M20) : desertcart.co.uk: DIY & Tools

## Features

- Copper Washers Kit – Includes 360 copper washers in 12 metric sizes (M5, M6, M8, M10, M12, M14, M16, M20), giving you the right fit for most repair and replacement jobs.
- High-Quality Material – Made from pure copper for superior corrosion resistance and excellent electrical and thermal conductivity. Withstands extreme heat up to 1083°C for reliable, long-lasting performance.
- Superior Sealing Performance – Softer than steel yet tougher than rubber, these copper crush washers compress perfectly to form a secure, leak-proof seal. Prevents fluid leaks in oil drain plugs, brake lines, fuel systems, and hydraulic fittings under high pressure and heat.
- Wide Applications – Suitable for cars, motorcycles, boats, generators, and machinery. Also ideal for plumbing, electronic, and chemical equipment. Reduces vibration, wear, and noise to extend equipment life.
- Easy to Store – Comes in a sturdy, transparent plastic box with labeled compartments for quick access. Keeps washers organized and your workspace neat and efficient.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJPB3821 |
| Best Sellers Rank | 23,182 in DIY & Tools ( See Top 100 in DIY & Tools ) 131 in Washers |
| Brand Name | Magicave |
| Colour | Copper Washers-330Pcs |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (513) |
| Exterior Finish | Copper |
| Fastener Size | M5 M6 M8 M10 M12 M14 M16 M20 |
| Fastener Type | flat |
| Finish Types | Glossy |
| Item Thickness | 0.35 Millimetres |
| Item Weight | 227 g |
| Manufacturer | Magicave |
| Manufacturer Part Number | M5 M6 M8 M10 M12 M14 M16 M20 |
| 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 |

## Product Details

- **Exterior finish:** Copper
- **Fastener size:** M5 M6 M8 M10 M12 M14 M16 M20
- **Item thickness:** 0.35 Millimetres
- **Material:** Copper
- **Washer type:** Flat

## Images

![330 Pieces 12 Sizes Copper Washers, Crush Washer, Premium Copper Metric Flat Washers, Copper Seal Washers Assortment Kit (M5 M6 M8 M10 M12 M14 M16 M20) - Image 1](https://m.media-amazon.com/images/I/814IGfx8HNL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- 330 Pcs Copper Washers Assortment Kit – 12 Sizes Flat Sealing Crush Washers (M5-M20) for Automotive, Plumbing, and Mechanical Use
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- Seamaka 580PCS Oil Crush Washer,18 Sizes Oil Drain Plug Gaskets Assortment Kit,Automotive Aluminum Drain Plug Washer M6 M8 M10 M12 M14 M16 M18 M20 M22 M24

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**Shop now:** [https://www.desertcart.pt/products/721349461-330-pieces-12-sizes-copper-washers-crush-washer-premium-copper](https://www.desertcart.pt/products/721349461-330-pieces-12-sizes-copper-washers-crush-washer-premium-copper)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-11-07*