Illustrative drawing. Actual product is confirmed to your specification at quotation.
Washers
Bonded Washers
A bonded washer combines a steel washer with a moulded rubber or elastomer sealing ring on the inner edge. It seals against fluids and air, and the metal backing keeps the seal in place under torque. Often called Dowty or bonded seals.
- Rubber ring bonded to metal
- NBR, EPDM and FKM compounds
- Common in roofing and hydraulic ports
Specifications
- Material
- Steel + NBR / EPDM / FKM rubberStainless steel + EPDM
- Grade / property class
- Seal compound selected for the fluid
- Thread
- Not threaded
- Finish / coating
- Zinc platedPlain
- Size range
- Up to M6M8–M12M14–M24
- Standards
- Manufacturer drawing (varies by fitting size)
Exact dimensions, lengths and availability are confirmed at quotation.
Applications
- Hydraulic and pneumatic fittings
- Roofing and cladding fasteners
- Plumbing and water systems
- Drain plugs and port seals
- Machinery covers
Related and complementary fasteners
Request a quote for Bonded Washers
Give us the size, grade, finish and quantity. We reply within one business day.
Common questions
- Which sizes and grades of bonded washers do you supply?
- We supply bonded washers in Up to M6, M8–M12, M14–M24 size bands and grades/classes including Seal compound selected for the fluid. Exact availability, dimensions and lead time are confirmed at quotation.
- Which standards do bonded washers follow?
- Common standards are Manufacturer drawing (varies by fitting size). Tell us the standard you need and we will quote to it.
- Can you supply in bulk or with test certificates?
- Yes. We quote for loose lots and scheduled bulk supply across India, and can share manufacturer test certificates where available. Confirm the requirement when you request a quote.
Need a quote on bulk or custom industrial supply?
Share your specifications and quantities — our technical team will respond with pricing and lead time within one business day.