Zinc Plated 6mm. These corrosion resistant Asec Steel Staple on Plates are used to provide a secure fixing to walls and floors. They have 4 countersunk holes to provide a secure fixing and are often used in applications to secure items such as hanging baskets and fixing points for canopies.. 4 countersunk fixing holes. Strong welded steel construction. Suitable for display on a merchandiser. Corrosion resistance