GRP Dome Washers can be used on Open Mesh, Solid Top and Sandwich Grating panels, Flat Plate and also on profiles. They meet the stainless steel grade 314/A4 and are suitable for any part of a fabrication. This includes the structure. We stock GRP Dome Washers in 30mm and 45mm sizes and they create a smooth, trip-free, snag-free solution to fixing down GRP Panels and Profiles. We can supply the coated versions that may be required in some settings. Get in touch for details.