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Copper washers, 12mm ID, 18mm OD, Bag of 10
Copper washers, 12mm ID, 18mm OD, Bag of 10
AGS Company

Copper washers, 12mm ID, 18mm OD, Bag of 10

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$2.84 $3.79

SKU: BCW-6

Ships fast, direct from AGS

Estimated delivery 3–5 business days (U.S.)

Need it sooner? Choose expedited shipping at checkout.

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Live carrier rates for the selected size and quantity. Final cost confirmed at checkout.

Why order direct from AGS

  • Straight from the manufacturer. Made and shipped by AGS, not a marketplace reseller. Genuine product, every order.
  • Real product support. Questions about fit or application? Talk to the people who make it: 888-253-0403 or email us.
  • 30-day returns. Unused product can come back within 30 days — see the policy.

Copper Crush Washers 12 mm ID × 18 mm OD

Eliminate leaks and maintain reliable fluid connections with AGS’s 12 mm ID × 18 mm OD copper crush washers. Made from soft, high-conductivity copper, each washer deforms uniformly under torque to fill surface imperfections and create a tight seal. Ideal for professional mechanics, fleet service operations, and DIY enthusiasts working on brake banjo fittings, fuel line connections, hydraulic assemblies, and more.

Key Features

Premium Copper Alloy: Soft, malleable material conforms perfectly to mating surfaces for a true seal

Uniform Crush Profile: Consistent deformation ensures repeatable torque values and leak-free performance

Corrosion-Resistant: Naturally withstands brake fluid, fuel, oil, and hydraulic media without pitting

Versatile Compatibility: Fits standard 12 mm male fittings with 18 mm seat diameters across automotive, industrial, and agricultural applications

Since 1931
Tech-Trusted
Satisfaction Guaranteed
Before you buy

Questions & answers

When will my order ship?
In-stock orders placed by 2:00 pm Eastern, Monday through Saturday, ship the same day. Orders placed after 2:00 pm ship the next shipping day. Standard ground delivery is typically 3–5 business days in the U.S., and faster options are available at checkout.
Who can I talk to about my application?
When you order direct, you get the team that makes the product. Call 888-253-0403 or email customerservice@agscompany.com with questions on fit, application, or your order.