For pricechoose optionsSelect Option M10 x 10mm (25) M10 x 25mm (25) M10 x 50mm (25) M10 x 75mm (25) M12 x 10mm (20) M12 x 25mm (20) M12 x 40mm (20) M12 x 60mm (20) M16 x 15mm (10) M6 x 10mm (50) M6 x 25mm (50) M6 x 40mm (50) M8 x 10mm (50) M8 x 25mm (50) M8 x 40mm (50) Quantity Add to Basket The MasonMate Loose Bolt Shield Anchors are for use in most types of masonry or concrete. Zinc plated for increased durability.