Copper Compression Washers – Hollow Crush Oil Drain Plug Washers | M6 to M27 | DIN 7603A

🔩 Copper Compression Washers – DIN 7603A Hollow Crush Washers

These high-quality copper compression washers are designed for effective sealing in automotive, plumbing, pneumatic, and hydraulic systems. Manufactured to DIN 7603A standards, they are ideal for applications requiring a hollow crush washer that conforms under pressure to create a tight, leak-free seal.

With excellent corrosion resistance and thermal conductivity, copper crush washers are commonly used in oil drain plug sealing, fuel line fittings, and low-pressure hydraulic systems.

📏 Sizes Available (I/D x O/D x Thickness):

• 6mm x 10mm x 1.5mm
• 8mm x 12mm x 1.5mm
• 10mm x 14mm x 1.5mm
• 12mm x 16mm x 2mm
• 12mm x 17mm x 2mm
• 12mm x 18mm x 2mm
• 14mm x 20mm x 2mm
• 14mm x 21mm x 2mm
• 14mm x 22mm x 2mm
• 16mm x 22mm x 2mm
• 18mm x 24mm x 2mm
• 19mm x 27mm x 3mm
• 20mm x 26mm x 2mm
• 22mm x 27mm x 2mm
• 24mm x 32mm x 2.5mm
• 26mm x 32mm x 2.5mm
• 27mm x 32mm x 2mm

📦 Quantities Available:

10, 25, 50 & 100
Bulk discounts available – contact us for trade pricing!

✅ Key Features:

• Made from High-Purity Copper: Excellent durability, corrosion resistance, and heat tolerance
• DIN 7603A Compliant: Manufactured to international sealing standards
• Ideal for Crush Applications: Deforms slightly under pressure to create a tight seal
• Withstands Harsh Conditions: Perfect for use in automotive and outdoor environments
• High Melting Point: +1083°C – safe for high-temperature applications
• Reusable in Some Cases: Provided the washer isn’t deformed beyond function

⚙️ Common Applications:

• Oil Drain Plug Sealing
• Fuel Systems and Carburettors
• Low-Pressure Hydraulic Lines
• Pneumatic Fittings
• Outdoor Plumbing Fixtures
• Marine and Agricultural Equipment

These washers are a go-to replacement in any situation where a durable, weather-resistant seal is required — trusted by professionals in automotive, marine, and mechanical repair industries.

🚚 Shipping & Dispatch:

• FREE UK Delivery via Royal Mail 48

Upgrade Options:

• Royal Mail 24 – £1
• FedEx Tracked Next Day – £5
• Same Day Dispatch on all orders placed before 1PM (Mon–Fri)
• Tracked & Signed International Delivery Available
• VAT Invoice Supplied with Every Order

🧰 Copper Crush Washers – The Reliable Seal for Every Job.
Whether you're servicing an engine, installing a fuel line, or sealing a pneumatic fitting, these washers deliver consistent, high-quality sealing performance in any condition.