Mild Steel Bonded Seals / Dowty Washers, Pack of 10

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Mild Steel Bonded Seals / Dowty Washers, Pack of 10 – Reliable Sealing for High-Pressure Applications

Our Mild Steel Bonded Seals (also known as Dowty Washers) are the trusted choice for creating leak-free seals in high-pressure hydraulic systems. These washers feature a mild steel outer ring and an inner rubber sealing element, providing a durable and reusable solution for brake, clutch, oil, and fuel line setups.

Key Features

Dual Material Construction

Combines a rigid mild steel outer ring with a bonded rubber insert to create a tight, vibration-resistant seal under pressure.
Pack of 10

Conveniently packaged in sets of 10 for use in installations, spares, or full system overhauls.
Size Options

Choose from multiple internal diameters to suit your fittings:
- 10mm Eye (M10, 3/8", 1/8" BSP)
- 12mm Eye (M12)
- 14mm Eye (M14, AN6)
- 16mm Eye (M16, 3/8" BSP)
- 18mm Eye (M18)
- 22mm Eye (M22)

Pair with our Aluminium Banjo Bolts for a secure, professional finish in any fluid system.

Upgrade your sealing solution with Mild Steel Bonded Seals / Dowty Washers — proven performance where leak prevention matters most.

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Frequently Asked Questions

What are mild steel bonded seals (Dowty washers) used for?
Bonded seals, also known as Dowty washers, are designed to create a reliable, leak-free seal between fittings and mating surfaces in fluid systems. They are commonly used in brake, clutch, fuel, oil, and coolant applications to ensure secure connections.
What sizes are available for these washers?
We offer mild steel bonded seals in the following internal diameters:
- 10mm (M10, 3/8" UNF, 1/8" BSP)
- 12mm (M12)
- 14mm (M14, AN6)
- 16mm (M16, 3/8" BSP)
- 18mm (M18)
- 22mm (M22)
This range ensures compatibility with various fittings and systems.
Are these washers compatible with your custom braided hoses?
Yes, our mild steel bonded seals are fully compatible with our range of custom braided hoses, including those used for brake, clutch, fuel, oil, and coolant applications. They ensure a secure, leak-free connection in high-performance environments.
How do I install these bonded seals?
Installation is straightforward: place the bonded seal between the fitting and the mating surface, then tighten the fitting to the manufacturer's torque specification. The rubber element will compress to create a tight seal. Ensure all connections are tight and leak-free before pressurising the system.
Are these washers reusable?
Bonded seals can be reused if the rubber element remains undamaged and retains its elasticity. However, for critical applications, it is recommended to use a new washer to ensure a perfect seal.