Screw Anchor, Anchor Diameter 5/8 in, Overall Length 5 in, Thread Length 4 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 2 1/4 in, Maximum Ultimate Shear Strength 13,476 lb Large-Diameter Tapcon(R) Self-Threading Anchors⢠Grade 5 zinc-plated, hardened steelRemovable structural screw anchors are for high-load capacity applications. Use in concrete and masonry and in dry, noncorrosive environments. Install with standard masonry drill bits.