For pricechoose optionsSelect Option M10 x 77mm (50) M10 x 97mm (25) M12 x 60mm (25) M12 x 75mm (25) M12 x 99mm (25) Quantity Add to Basket 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.