5/16" x 3" UltraCon Concrete Screw Anchors, Star Flat Oversized Head, #3 Drive Size, 7/32" Drill Bit Size, Silver Stalgard Coating

The UltraCon fastening system is a complete family of screw anchors for light to medium duty applications in concrete and masonry block base materials. UltraCon concrete screw anchor is available in 5/16" diameter which provides increased shear and tensile strength to meet the needs of more demanding applications. The UltraCon is fast and easy to install and provides a neat, finished appearance. The UltraCon screw anchor is available in carbon steel with a Stalgard coating in silver that provides additional corrosion resistance.