1000PCS 35mm Insulation Metal Washers, Galvanised Iron Easy Fix Washers with Six Holes for Boards, Plasterboard, Tile Backer Board and Gypsum Boards

【Galvanised Iron Construction】These 35mm washers are made from galvanised iron. The metal material stays firm under pressure, helping your insulation board or tile backer board remain securely in place over time. 【Six-Hole Design for Adhesive Flow】Each easy fix washer features six holes. This perforated pattern allows adhesive or plaster to pass through and bond directly to the board surface. You get a stronger finished layer with less risk of surface delamination. 【1000 Pieces for Larger Projects】This pack provides 1000 pcs of 35mm diameter washers. Enough quantity for fixing insulation boards, tile backer boards, plasterboards, or other construction boards. No need to reorder frequently – keep your work moving without interruption. 【Multi-Surface Application】Suitable for insulation boards, tile backer boards, gypsum boards, extruded plates, composite boards, and fixing building boards to timber or metal frames. Works on floors and walls in various construction settings. 【Penny Washer Style – Wider Coverage】The 35mm diameter gives these washers a penny washer profile, distributing load over a larger area. This helps prevent board damage around the screw head, especially with softer insulation materials.