Screw Anchor, Anchor Diameter 1/4 in, Overall Length 3 in, Head Type Hex, Drive Type External Hex, Material Steel, Finish Zinc Plated, Material Grade/Class Case Hardened, Compatible Material Concrete, Drill Bit Size 1/4 in, Screw Anchor Type Concrete Screw Anchor, System of Measurement Inch, Maximum Material Thickness 1 1/4 in, Maximum Ultimate Shear Strength 2,680 lb, Maximum Ultimate Tension Strength 1,025 lb, Minimum Installation Depth 1 3/16 in, Body Length 3 in, Package Quantity 500