100Pcs Tile Backer Board Washers 28mm Diameter Insulation Board Washer Easy Fix Washers for Gypsum Board Extruded Plate Insulation Thermoboard Fixed Backer Boards

• 【Size】: Diameter 28mm/1.1in, aperture: 5mm/0.19in, suitable for most insulation boards on the market.
• 【Material】:These board washers are made of high-quality metal, sturdy, corrosion, and easy to use.
• 【Function】: These fixing washers fix the support plate on the floor or wall, they are an essential component for installing the tile back plate.
• 【Application】: Used for fixing insulation board, ceramic tile support board, gypsum board, insulation board, etc.
• 【Durable】: These butterfly-shaped washers are not easily deformed. The perforation of the fixing disk allows the adhesive or plaster to stick to the board’s surface, as well as minimizing the risk of surface delamination or damage.

Item Descriptions: 1，[4-Claw Design]: This ultra thin washer with claws can fix the panel more firmly, and become almost flush with the board. ,2，[Application]: Used for insulation boards, tile backer boards, gypsum boards, composite boards extruded plates, or just fixing construction boards to frames. 3，[Material]: Four claw gaskets Made of high quality material, surface galvanized, durable, anti-wear and anti-corrosion. 4，[Dimension]: Composite board fixed out diameter is 30mm/ 1.18inch and the hole diameter is 5mm/ 0.19inch. Item Specifications: Material: Galvanized Iron Item Diameter: 28mm/ 1.1inch Hole Size: 5mm/ 0.19inch Thorn height: 5mm/ 0.19inch Number in Pack: 100Pcs