Screw Anchor Anchor Diameter 5/8 in Overall Length 4 in Thread Length 3 9/20 in Head Type Hex Head Width 0.81 in Head Diameter Not Applicable Drive Type External Hex Material Steel Finish Zinc Plated Material Grade/Class Grade 5 Removable Removable Compatible Material Concrete Drill Bit Size 1/2 in Screw Anchor Type Concrete Screw Anchor System of Measurement Inch Maximum Material Thickness 1 1/4 in Maximum Ultimate Shear Strength 13 476 lb