Elevate your construction and DIY projects with the MasonMate M12 Hex Nut Sleeve Anchors. Specifically engineered for dependable fastening in masonry and concrete applications, this comprehensive pack contains 25 premium-grade anchors, each measuring M12 x 129mm. These anchors are perfect for accommodating a variety of fixture thicknesses, with a maximum fixture thickness of 81mm and a minimum hole depth requirement of 55mm. Crafted with a zinc plating, these anchors offer exceptional corrosion resistance and enhanced durability, making them suitable for both indoor and outdoor environments. Count on MasonMate for all your anchoring solutions and ensure your fixtures are securely fastened!