The MasonMate Stainless Steel Hex Nut Sleeve Anchors are made for use in most types of masonry or concrete. Made from durable Stainless Steel for increased durability. Select Option M10 x 50mm (50)M10 x 77mm (50)M10 x 97mm (25)M12 x 60mm (25)M12 x 75mm (25)M12 x 99mm (25) Add to Basket Quantity