Mild Steel Bonded Seals / Dowty Washers, Pack of 10

  • Mild Steel Bonded Seals / Dowty Washers, Pack of 10 - Picture 1 of 1
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  • £4.79

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  • Order by 3pm for same-day dispatch. Worldwide delivery available.
  • 100-day hassle-free returns – exchange or refund with no questions asked.
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Delivery Options

We aim to dispatch orders the same day if ordered before 3pm (Monday to Friday, excluding bank holidays). Orders placed over the weekend will be sent on the Monday, unless it's a bank holiday.

For detailed delivery information, please visit our delivery page.

United Kingdom
Royal Mail 48 Tracked
FREE
2-3 Working Days
Royal Mail 24 Tracked
£5.99
1-2 Working Days
Royal Mail Special Delivery
£12.99
Next Working Day
Europe
Royal Mail Tracked
£14.99
5-7 Working Days
Rest of World
Royal Mail Tracked
£24.99
5-10 Working Days
100-Day Returns

We stand by the quality of our products, which is why we offer a generous 100-day return policy, even for custom-made items. This extended returns period gives you plenty of time to check the quality and performance of our products.

For full details, please visit our returns page.

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Specifications
Product Code
Internal Diameter
Compatibility
WSH-DOW-MS-10
10mm
M10, 3/8", 1/8" BSP
WSH-DOW-MS-12
12mm
M12
WSH-DOW-MS-14
14mm
M14, AN6
WSH-DOW-MS-16
16mm
M16, 3/8" BSP
WSH-DOW-MS-18
18mm
M18
WSH-DOW-MS-22
22mm
M22
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.