4-Prong Washers Heavy Duty Insulation Fasteners 28mm Iron Galvanized

This product is a set of 200 pcs 4-prong washers designed for use with extruded plasterboard, thermal insulation, and fixed back plates, ideal for contractors and DIY enthusiasts.

• Constructed from high-quality iron and galvanized material for durability.
• Designed to provide a secure hold when used with steel screws, minimizing the risk of delamination.
• Perfect for various applications including insulation boards, tile backer boards, and gypsum boards.
• Heavy-duty design ensures reliability in securing backing boards to different surfaces.

• Diameter: approximately 28 mm.
• Requires about 8 washers per board, depending on the size of your backing board.

• 200 pcs of heavy-duty steel washers included.