--- product_id: 126962275 title: "150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5" brand: "toolwiz" price: "¥4979" currency: JPY in_stock: true category: "Toolwiz" url: https://www.desertcart.jp/products/126962275-150pcs-15-sizes-copper-washers-metric-sealing-assortment-m17-5 store_origin: JP region: Japan --- # Max temp 350°C heat endurance 16MPa max pressure seal 150PCS versatile sizes 150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 **Brand:** toolwiz **Price:** ¥4979 **Availability:** ✅ In Stock ## Summary > 🔧 Seal like a pro — never compromise on quality or fit! ## Quick Answers - **What is this?** 150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 by toolwiz - **How much does it cost?** ¥4979 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/126962275-150pcs-15-sizes-copper-washers-metric-sealing-assortment-m17-5) ## Best For - toolwiz enthusiasts ## Why This Product - Trusted toolwiz brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Organized:** Transparent compartmented case keeps your washers sorted and ready for any project on the go. - • **Complete Copper Kit:** 150 precision washers spanning 15 popular metric sizes for every sealing need. - • **Pressure-Proof Seal:** Engineered to handle pressures up to 16MPa, ensuring leak-free performance under stress. - • **Superior Heat Resistance:** Withstands up to 350°C, outperforming steel and rubber alternatives for high-temp applications. - • **Trusted Industrial Grade:** Preferred in chemical plants, power stations, and precision instruments for unmatched reliability. ## Overview This 150-piece copper washer assortment offers 15 metric sizes (M5 to M17.5) crafted from 100% corrosion-resistant copper. Designed for high heat (up to 350°C) and pressure (16MPa) environments, these flat ring washers provide superior sealing for sump plugs, hydraulic fittings, and industrial applications. Packaged in a clear, compartmentalized case, this set is a must-have for professionals demanding durability and precision. ## Description Toolwiz 150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5: desertcart.com: Industrial & Scientific ## Features - Material: 100% copper, high conductivity, corrosion resistant copper washer assortment - 150PCS 15 Popular Sizes Sealing Washers Kit, great for sump plugs, water, fuel, and hydraulic fittings - 150 pcs solid copper sump plug washer set. All contained in a compact and see through compartmented plastic case, convenience to use. - Copper Provides a Tighter Seal and Greater Heat Endurance than Steel and Rubber Washers. Max Operation temperature: 350C Max Operation pressure:16MPa Melting point: 1083C - Widely applied in the flange and the connection of the chemical plant, electricity generating station, nuclear power station, and electronic, digital consumer products, hardware, precision instruments, electrical appliances, bearings, air pumps, water pumps, water valves, air cylinder, sealing the high pressure braking systems.ect. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G5FP73B | | Best Sellers Rank | #34,751 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Sealing Washers | | Brand | Toolwiz | | Color | Copper | | Compatible Groove Diameter | 16 millimeters | | Customer Reviews | 4.7 4.7 out of 5 stars (1,136) | | Exterior Finish | Copper | | Fastener Size | M14 | | Fastener Type | Flat Washer | | Finish Types | Natural Metallic | | Grade Rating | Copper | | Item Diameter | 17.5 millimeters | | Item Thickness | 1 millimeters | | Item Weight | 0.29 kg | | Manufacturer | kingcompany | | Material Type | Copper | | Metal Type | Copper | | Model | kupfer unterlegscheiben flach | | Number of Pieces | 150 | | Outside Diameter | 20 millimeters | | Part Number | ASR0271RD | | Screw Head Style | Flat | | Size Name | 5mm to 17.5mm | | UPC | 696177827450 | | Unit Count | 1 Count | | Washer Type | Flat | ## Product Details - **Exterior Finish:** Copper - **Fastener Size:** M14 - **Material:** Copper - **Outside Diameter:** 20 millimeters - **Washer Type:** Flat ## Images ![150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 - Image 1](https://m.media-amazon.com/images/I/71f-S0EC2jS.jpg) ![150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 - Image 2](https://m.media-amazon.com/images/I/71xBy-B8ZcL.jpg) ![150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 - Image 3](https://m.media-amazon.com/images/I/81AbzhYMuUL.jpg) ![150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 - Image 4](https://m.media-amazon.com/images/I/71VxwjWN2hS.jpg) ![150PCS 15 Sizes Copper Washers Metric Sealing Assortment M17.5-M5 | Flat Ring Sump Plug Crush Washer Oil Drain Plug Gasket Seal Assortment Set M5/6/7/8/10/10.5/11/12/12.5/14/15/16/16.5/17.5 - Image 5](https://m.media-amazon.com/images/I/81H0usGooZL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/126962275-150pcs-15-sizes-copper-washers-metric-sealing-assortment-m17-5](https://www.desertcart.jp/products/126962275-150pcs-15-sizes-copper-washers-metric-sealing-assortment-m17-5) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-12*