Bonded Seal Washers – Metric Dowty Washers | Hydraulic Sealing Washers | Nitrile Centre | M10–M24

🛡️ Bonded Seal Washers – Dowty Type (Hydraulic Sealing Washers)

These self-centralising bonded seal washers (also known as Dowty washers) provide a reliable, high-pressure seal ideal for hydraulic systems, fuel lines, and industrial applications.

Each washer features a metal outer ring with an integrated Nitrile rubber inner seal to create a secure and leak-proof connection around bolts, pipe fittings, and BSP threads.

Engineered to seal against water, oil, petrol, diesel, and other fluids, they are widely used in automotive, hydraulic, pneumatic, and engineering environments where a permanent and pressure-resistant seal is essential.

📏 Sizes Available:

Dimensions listed as Thread Size × Outer Diameter × Thickness

• M10 × 16mm × 1.5mm
• M12 × 18mm × 1.5mm
• M14 × 21mm × 1.5mm
• M16 × 26mm × 1.5mm
• M18 × 26mm × 1.5mm
• M20 × 28mm × 1.5mm
• M22 × 30mm × 1.5mm
• M24 × 32mm × 1.5mm

📦 Quantities Available:

10, 25, 50 & 100
Need bulk or trade quantities? Contact us for a custom quote.

✅ Features & Benefits:

• High-Quality Bonded Seal Design: Metal + Nitrile combination ensures durability and tight sealing under pressure
• Self-Centralising: Precise fit around bolt shanks or pipe threads
• Nitrile Rubber Inner Ring: Offers superior resistance to oil, water, fuel, and hydraulic fluids
• Ideal for High-Pressure Systems: Commonly used in hydraulic fittings and BSP threaded applications
• Prevents Leaks & Pressure Loss: Provides a clean, long-lasting seal
• Corrosion-Resistant & Long-Lasting: Engineered for industrial environments
• Note: BSP thread sizes differ from standard imperial; ensure compatibility before ordering

🛠️ Common Uses:

• Hydraulic systems and couplings
• Pneumatic equipment
• Oil and diesel lines
• High-pressure pipe joints
• Marine and agricultural machinery
• BSP thread sealing applications
• Automotive repair & maintenance
• Engineering assembly lines

🚚 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)
• International Shipping: Tracked & Signed service worldwide
• VAT Invoice Included with Every Order

🧰 Bonded Seal Washers – Trusted Sealing Performance for Hydraulic & Fluid Applications.

Whether you're working on hydraulics, industrial machinery, or automotive repairs, our bonded Dowty washers are the go-to solution for leak-free, pressure-resistant seals.