These 19mm galvanised bonded sealing washers are designed for use with Tek roofing screws to help create a reliable weather-resistant seal between the screw head and roofing sheet. Manufactured from galvanised steel with a bonded EPDM rubber sealing ring, they provide excellent durability and long-lasting performance for roofing and external fixing applications. When correctly installed, the EPDM rubber compresses beneath the screw head to help reduce water ingress while the galvanised steel backing provides strength and corrosion resistance. Suitable for professional roofing contractors, builders and DIY users.
The bonded EPDM rubber washer compresses during installation to help create a secure seal around the fixing point, reducing the risk of water penetration into the roofing system. Ideal for external roofing applications.
Manufactured with a galvanised steel backing to provide strength and corrosion resistance in outdoor environments. Designed for long-lasting performance when used with compatible roofing fixings.
Designed for use with compatible Tek roofing screws, helping provide consistent sealing performance across a wide range of roofing installations. Suitable for both repair work and new roofing projects.
Suitable for:
Please note: The EPDM rubber insert may be black or grey, depending on the production batch. This does not affect product performance.
EPDM bonded washers help improve the weather resistance of roofing fixings by creating a compression seal beneath the screw head. They are commonly used with metal roofing systems to help protect fixing points from moisture while allowing secure installation.