These 28mm x 12/14G Galvanised EPDM 3mm Grey Bonded Washers combine the strength of galvanised steel with the sealing power of EPDM rubber to provide a reliable, long-lasting fastening solution for outdoor and industrial applications. Designed to fit 12 to 14 gauge screws, these washers ensure excellent load distribution while preventing water ingress and corrosion.

Product Specifications:

• Outer Diameter: 28mm

• Inner Diameter: Fits 12/14G screws (approx. 5.5mm–6.3mm)

• Thickness: 3mm (combined EPDM and galvanised steel)

• Material: Galvanised Steel with EPDM Rubber Seal

• Colour: Grey

• Corrosion Resistance: Excellent – ideal for outdoor use

• Weatherproof: Yes – UV and ozone resistant

These washers are designed for secure sealing in roofing, cladding, guttering, and outdoor building projects. The EPDM rubber provides a weatherproof seal, preventing leaks, moisture penetration, and damage from vibration. Meanwhile, the galvanised steel backing offers mechanical strength and corrosion resistance, making them suitable for harsh environments.

Ideal For:

• Roofing and cladding fixings

• Outdoor metal structures

• Gutter and downpipe installations

• Agricultural and industrial projects

• Any fastening requiring water-tight sealing and corrosion protection

Key Benefits:

• Combines mechanical strength with superior sealing

• EPDM rubber resists UV rays, ozone, and aging

• Galvanised steel backing prevents rust and corrosion

• Provides excellent vibration damping and noise reduction

• Easy to install with compatible 12/14G fasteners

Available in multiple pack sizes – choose the quantity that fits your project.

Choose 28mm x 12/14G Galvanised EPDM 3mm Grey Washers for strong, weatherproof, and corrosion-resistant fastening every time.