36mm Steel Insulation Washers And Screws For Insulation Fixings Including Tile Backer Boards XPS Insulation And More Packs of The 100 (35mm Screws x100 and 36mm Washers x100)

An absolute must for fastening insulation boards to roof timbers. Theses drive straight in with power driver and hold them firmly in place. Delivery was quick and not the cheapest but, for when the quality of the job more important.

Used these to fix tile backer board on chipboard floor. They are nice and thin and hold the board tight without interfering with the tile

work great

disappointing, this washer is not suitable for use with small headed galvanised nails as were ones previously bought on amazon!