Evolution GIW80 80mm Galvanised Insulation Washer (Box of 100) by Evolution Fasteners

The Evolution GIW80 is an 80mm stress plate designed for securing rigid insulation boards and single-ply membrane systems. Its wide diameter evenly distributes load, preventing insulation from pulling over the fixing and ensuring a firm attachment. The polygon design allows for flexibility during installation, reducing the risk of insulation board damage if over-tightened.