Copper Washer for Oils of 2025
Best Choice1
SeamakaSeamaka 360PCS Crush Washer Oil Drain Plug,18 Sizes Copper Crush Washers Assortment Kit,Automotive Oil Pan Drain Plug Gasket M6 M8 M10 M12 M14 M16 M18 M20 M22 M24
Main highlights- Widely used: it is a very good sealing additive for electrical connection in automobile, electrical appliance and ship applications, such as oil pipes, hydraulic fittings, oil drainage and so on
- Suits include: a total of 360, with 18 sizes, including: M6(80), M8(80), M10(70), M12(40), M14(25), M16(20), M18(20),M20(10),M22(10) and M24(5)
- Product performance: it can reduce friction between fasteners, disperse pressure and prevent leakage and looseness
- Product material: made of copper, corrosion-resistant and oxidation-resistant, which can be used in harsh environments such as high temperature, cold weather and high humidity areas. Good sealing performance and long service life
- Packaging: In a transparent storage box, there is a label: it is easy to distinguish the size of the product, which helps you find the correct oil plug gasket quickly and saves time
9.7Exceptional
View offer on:
Show more
How do we rank?
Using our advanced technology, we scan thousands of products and stores, analyzing reviews, ratings, and trends to find what matters most to users like you.Our team then reviews the data and real user feedback, combining AI and human insights to bring you real-time, top-rated recommendations to guide your decisions with clarity and confidence.
Value for Money2
JMINRUN350 PCS, Premium Copper Metric Sealing Crush Washers Assortment Kit, Enhanced Flat Ring Oil Drain Plug Crush Washer Gasket Seal Set, Banjo Bolt Washers for Automotive, Motorcycles （10 Size）
Main highlights- Versatile Applications: Perfect for a wide range of applications, our copper flat washers are suitable for use in industrial, automotive, electrical, marine, and household projects. Whether you are a professional mechanic or a DIY enthusiast, these washers cater to all your sealing needs, ensuring optimal performance every time
- User-Friendly Organization: Each set comes in a durable transparent storage case with a detailed size reference chart, making it convenient to find the right size whenever you need it. This organized setup not only saves time but helps keep your workspace tidy and efficient
- Superior Material Quality: Made from high-grade red copper, our washers are specifically designed to deliver a tighter seal and enhanced high-temperature resistance. Their exceptional electrical and thermal conductivity and robust anti-corrosion properties ensure long-lasting performance, making them perfect for both heavy-duty and everyday applications
- Enhanced Compatibility: Our washers offer an ideal fit for screws, nuts, and bolts of the same sizes, providing a greater bearing surface that reduces pressure and friction. This design effectively prevents leakage and loosening, ensuring your connections are secure and reliable under various conditions
- Comprehensive Variety: Our kit includes 350 pieces of copper flat washers in 10 different sizes (M5, M6, M8, M10, M12, M14), providing you with an extensive selection to meet all your project needs. Whether you're tackling small repairs or larger automotive tasks, this assortment ensures you have the right size at your fingertips
9.6Exceptional
View offer on:
Show more
3
AKOSN325 PCS, 10 Sizes, Premium Copper Metric Sealing Crush Washers Assortment Kit, Upgraded Flat Ring Oil Drain Plug Crush Washer Gasket Seal Assortment Set, Banjo Bolt Washer for Automotive, Motorcycles
Main highlights- 【Wide Applications】– Ideal for industrial, automotive, marine, hydraulic, and household uses. Suitable for electrical appliances, machinery, plumbing, and more.
- 【Secure & Protective Fit】– Designed for seamless compatibility with screws, nuts, and bolts of matching sizes. Distributes pressure evenly, reduces friction, and prevents leaks or loosening.
- 【Premium Red Copper】– Made of high-quality red copper for excellent heat resistance, electrical conductivity, and corrosion resistance. Durable, wear-resistant, and long-lasting for reliable performance.
- 【Convenient Storage】– Packed in a sturdy, transparent box with a detailed size chart for easy identification and organization. Portable and ready for immediate use.
- 【325 Pieces in 10 Sizes】– Get a versatile assortment of 325 copper flat washers (M5, M6, M8, M10, M12, M14) to meet various fastening and sealing needs. Perfect for DIY, repairs, and industrial applications.
9.5Excellent
View offer on:
Show more
4
Magicave330 Pcs Copper Washers Assortment Kit – 12 Sizes Flat Sealing Crush Washers (M5-M20) for Automotive, Plumbing, and Mechanical Use
Main highlights- Versatile Applications: From automotive repairs to industrial tasks, these copper washers excel in a range of uses, including sump plugs, fuel fittings, hydraulic systems, electronics, and more. They’re especially effective when used as oil drain plug crush washers, ensuring a secure seal to prevent messy leaks and extend component life.
- Enhanced Performance: Engineered for precise load distribution, our copper washers minimize heat and friction during tightening, ensuring a leak-proof seal. Thanks to their superior conductivity and corrosion resistance, they outperform steel and rubber alternatives in durability and efficiency—making them ideal for crush washer replacements or critical oil drain plug crush washer needs.
- Durable Construction: Crafted from high-quality copper, these washers deliver excellent wear, corrosion, and rust resistance. Designed to handle tough conditions, they are the perfect choice for replacing an oil drain plug crush washer or ensuring reliable seals in demanding applications.
- Convenient Packaging: Neatly organized in a durable, clear plastic box, this copper washer kit keeps your workspace tidy and ensures quick access to the size you need. Whether you're assembling a crush washer assortment for routine maintenance or addressing an urgent oil drain plug crush washer repair, this kit is built for your convenience.
- Comprehensive Set: This kit includes 330 premium copper washers in 12 sizes (M5, M6, M8, M10, M12, M14, M16, M20). With a wide variety of sizes and plenty of each, you’ll always have the right crush washer or sealing solution, whether you’re tackling DIY repairs or professional maintenance tasks.
9.4Excellent
View offer on:
Show more
5
Cerpourt200pcs 9 Sizes Premium Copper Metric Sealing Crush Washers Assortment Kit,Flat Sealing Washer M5 M6 M8 M10 M12 M14,Flat Ring Sump Plug Oil Seal Gasket Sealing Fitting Washers for Industrial,Household
Main highlights- 【Widely Application】 Copper washer assortment are widely used in various industries and applications due to their own product characteristics.The superior sealing: Connections in plumbing and automotive systems.Thermal conductivity: In high-temperature applications.Electrical conductivity: In electronic assemblies.Corrosion resistance: Such as marine,chemical processing,and plumbing applications.Distributing pressure: In mechanical systems to prevent wear and damage.
- 【High-Quality Copper Material】The copper washers are crafted from premium-grade copper,which has excellent thermal and electrical conductivity,corrosion resistance,tighter sealing,sturdy and durable,these crush washers are suitable for plumbing,sump plugs,electrical installations,mechanical uses,providing a reliable sealing and stable connection.Durable for daily use and can be used repeatedly.
- 【Design Feature】The copper crush washers are designed to fit tightly between two mating surfaces to evenly distribute the pressure,reduce heat and friction during tightening,while preventing leakage and ensuring a tight and secure seal.The washer has a hole in the center to allow it to be placed around a bolt or screw of the same size.
- 【Copper Washer Size】Contains 200pcs copper washers kit in 9 different sizes,30pcs M5*9*1, 30pcs M6*10*1, 20pcs M6*12*1, 20pcs M8*12*1, 20pcs M8*14*1, 20pcs M10*14*1,20pcs M12*16*1, 20pcs M12*18*1.5, 20pcs M14*18*1.Each one is neatly placed into different compartment of the sturdy transparent organizer box with detailed dimension size table,you can easily find what you need.
- 【100% Satisfaction】Our team of professionals is constantly working to make you satisfied.And any questions about the copper washers,please also feel free to contact me so that I can help you solve the problem as soon as possible.
9.3Excellent
View offer on:
Show more
6
ToolwizToolwiz 150PCS 15 Sizes Copper Washers Metric Sealing Assortment Set 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
Main highlights- 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.
- Material: 100% copper, high conductivity, corrosion resistant copper washer assortment
- 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
- 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.
9.2Excellent
View offer on:
Show more
7
VKVXCLON325 Pcs 10 Sizes Copper Washers Kit, Copper Crush Sealing Washers Assortment Kit Metric Flat Washers Oil Drain Plug Crush Washer Gasket for Automotive, Motorcycles
Main highlights- Widely : Copper washers kit widely apply for marines, boat, hydraulic fittings, various electric appliance, fuel, bearings, air pumps water pumps,hardware, precision instruments and household projects.etc
- Special Design : Crush washer oil drain plug packed in a durable transparent box and have label in box with a detailed size reference chart, can easy to pick correct oil plug gasket quickly and used
- Size : Total contain 10sizes : M5,M6,M8,M10,M12,M14, 325 pieces copper washers, multiple different size meet your various home DIY demands
- Material : Copper crush washer kit made of high quality copper, which have smooth surface, corrosion resistance, wear resistance and rust resistance, it tighter seal and higher heat resistance than steel and rubber washers
- Function : Copper crush sealing washers apply to oil lines hydraulic fittings,oil drain, which can reduce pressure and friction, prevents leakage, isolates, prevents loosening or dispersion pressure, ensuring your connections are secure and reliable under various conditions
9.1Excellent
View offer on:
Show more
8
GZZTORESGZZTORES 325PCS 10 Sizes Copper Crush Washer Assortment Kit, Flat Sealing Crush Washers Oil Drain Plug Gaskets Assortment Kit for Automotive Plumbing and Motorcycles
Main highlights- Wide Application：Copper crush washers are widely used in automotive or electrical applications, such as oil pipes, hydraulic fittings, oil drain pipes, etc
- Premium Quality：Our crush washers are made of copper, it has good corrosion-resistant and oxidation-resistant, can be used in harsh environments such as high temperature, cold weather and high humidity areas
- Packing Includes: Copper crush washer assortment kit is including: M5(55 PCS), M6(70 PCS), M8(60 PCS), M10(30 PCS), M12(60 P CS), M14(50PCS) crush washer oil drain plug washer
- Packaging: Copper washers are packed in an easy-to-storage plastic box. There is a label with the oil drain plug model on the packaging box for easy identification of the gasket model and easy access
- Comprehensive Set：Copper Crush Washer Assortment Kit is a total of 325 pieces and 10 sizes, almost all sizes you may need: M5 M6 M8 M10 M12 M14. Different sizes can meet your different needs
9.0Excellent
View offer on:
Show more
9
maierke33% Offmaierke 110PCS Crush Washer Oil Drain Plug Gasket Assortment,50PCS 5 Sizes Copper and 60PCS 6 Sizes Aluminum Oil Plug Washers Automotive Engine Crush Washers (M10 M12 M14 M16 M18)
Main highlights- Wide Application:These oil drain plug gaskets are perfectly suitable for various vehicles, they are very good sealing assistant of electrical connection in automobile
- Types:The oil drain plug gasket kit contains 5 models copper cush washers and 6 models aluminum cush washers,to meet your basic needs and is suitable for various models
- Packing:The oil drain plug gasket is packed in an easy-to-store plastic box, and the packing box has the label of the oil drain plug model, which is convenient for identifying the gasket model and easy to access and use;Packing Includes: Totaling 110 PCS,including:M10(20 PCS),M12(30 PCS),M14(20 P CS),M16(20PCS),M18(20 PCS)
- Great Sealing:Oil plug washer kit is usually used between fasteners such as oil drain plug, oil pipe and hydraulic joint, which can reduce the friction between fasteners, disperse pressure and prevent leakage and looseness,protect your engine
- Excellent Material:These oil drain plug washers are made of high-grade copper and aluminum alloy, which are corrosion-resistant and can withstand high temperature and high pressure
8.8Very Good
View offer on:
Show more
10
LordHardware10% OffLordHardware 200pcs Copper Crush Metric Washers Assortment Kit Flat Sealing Washer M5 M6 M8 M10 M12 M14 (9 Sizes)
Main highlights- Storage Box: 200pcs washers are organized in a sturdy convenient storage case
- Size: 9 size copper flat crush washers, include M5, M6, M8, M10, M12 and M14
- High Qulity: Made of high quality red copper, provides high temperature resistance, high conductivity and tighter seal; works great in wet environment
- Buy with Confidence: Free return for mistaken purchase. If there is any problem, please feel free to contact us, we will try our best to solve your problem
- Application: Widely used for electrical connections, such as household, commercial appliances, automotive and marine, fuel, hydraulic fittings etc.
8.7Very Good
View offer on:
Show more
Similar products on Amazon
