Stop fluid leaks for good with this professional 90-piece bonded seal assortment.

8 x Sizes: M10, M12, M14, M16, M18, M20, M22, M24.

Assortment Box of Metric Bonded Seals (Dowty Washers)
A professional‑grade selection of metric bonded seals, also known as Dowty washers, supplied in a durable compartmented storage box for fast, organised access in the workshop. Designed for reliable sealing under pressure, each washer features a steel outer ring with a bonded NBR elastomer inner seal, creating a secure, leak‑resistant joint when compressed against hydraulic fittings, fuel lines, air systems and general fluid connections.

Key Features

• Metric bonded seal assortment covering commonly used workshop sizes
• Steel + NBR construction for dependable high‑pressure sealing
• Ideal for hydraulic, pneumatic, fuel and oil systems
• Pre‑sorted in a labelled storage box for quick identification and reduced downtime
• Suitable for automotive, agricultural, plant, marine and industrial maintenance
• Provides a clean, professional sealing solution for BSP‑style and metric threaded fittings depending on size selection

Why These Bonded Seals Are Essential

Bonded seals (Dowty washers) are widely used where a standard copper washer cannot maintain pressure integrity. The bonded rubber insert ensures a tight, self‑energising seal that resists vibration, temperature changes and fluid pressure — making this assortment an essential kit for mechanics, engineers, mobile fitters and workshop technicians.

Typical Applications

• Hydraulic hoses and pump fittings
• Fuel system unions
• Oil and coolant line sealing
• Air compressor and pneumatic equipment
• General machinery maintenance and repair

What’s Included

A mixed selection of metric bonded seals, neatly organised in a clear, compartmented box to keep sizes separated and ready for immediate use. Ideal for keeping on the van, in the workshop or as part of a professional service kit.