200pcs Copper Sealing Washer Kit M5–M14 Flat Ring Gasket Set
200pcs Copper Sealing Washer Kit M5–M14 Flat Ring Gasket Set
200-Piece Copper Sealing Washer Assortment Kit
Keep your projects leak-free with this comprehensive 200-piece copper sealing washer kit. Covering six of the most common metric sizes — M5, M6, M8, M10, M12, and M14 — this boxed assortment is the go-to solution for mechanics, plumbers, DIY enthusiasts, and maintenance professionals who need a reliable variety of flat ring gaskets and O-ring style seals on hand at all times.
Made in Mainland China.
Why Choose This Copper Washer Kit?
- Comprehensive Size Range: Includes M5, M6, M8, M10, M12, and M14 flat ring gaskets to cover the most frequently needed metric sizes in one convenient kit.
- Quality Copper Construction: Each washer is crafted from copper, offering excellent malleability, corrosion resistance, and reliable sealing performance under pressure.
- 200-Piece Quantity: A generous supply across all sizes means you'll always have the right washer ready without repeated trips to the hardware store.
- Organised Storage Box: Washers come neatly sorted in a compartmentalised box for quick, easy access and tidy storage in your toolbox or workshop.
- Wide Application: Ideal for automotive maintenance, hydraulic fittings, plumbing connections, oil drain plugs, fuel lines, and general mechanical assemblies.
- Effective Sealing: The flat ring design creates a reliable seal between mating surfaces, helping to prevent fluid or gas leaks in both low- and medium-pressure applications.
Kit Specifications
- Total Pieces: 200 washers
- Sizes Included: M5, M6, M8, M10, M12, M14
- Material: Copper
- Type: Flat ring sealing gasket / O-ring style washer
- Packaging: Organised compartment storage box
- Origin: Made in Mainland China
Ideal For
- Automotive oil drain plugs and engine fittings
- Hydraulic and pneumatic system connections
- Plumbing pipe joints and faucet fittings
- Fuel and fluid line assemblies
- General workshop and maintenance tasks
Related Products You May Like
Complete your toolkit with these related items from our store:
- Stainless Steel Cord End Caps with Loop – 6pcs Jewelry Findings
- Stainless Steel Flat Disc Spacer Beads Gold Silver – 20-50pcs
- 10pcs Metal Q Ring Spring Clasps Gold Silver Plated Jewelry
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: What sizes are included in this copper sealing washer kit?
A: The kit includes 200 copper flat ring gaskets across six metric sizes: M5, M6, M8, M10, M12, and M14. The washers are pre-sorted and stored in a compartmentalised box for easy identification and access.
Q: What materials are these sealing washers made from?
A: All washers in this assortment are made from copper, which provides good malleability, natural corrosion resistance, and a reliable seal when compressed between two mating surfaces — making them suitable for automotive, plumbing, and mechanical applications.
Q: Are these washers suitable for use with oil drain plugs?
A: Yes. Copper sealing washers are a popular choice for oil drain plugs, fuel fittings, and hydraulic connections due to copper's ability to deform slightly under torque and create a tight, leak-resistant seal. Always verify the correct size for your specific fitting before installation.
Q: How are the washers organised in the box?
A: The 200 washers are sorted by size and housed in a clearly divided compartment storage box, making it easy to find the size you need quickly and keep your workshop or toolbox tidy.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.