Concrete Anchor Screw Anchor Diameter 1/4 in Overall Length 4 in Head Type Flat Drive Type Phillips Material Steel Finish Blue Ruspert Material Grade/Class Case Hardened Removable Removable Compatible Material Concrete Drill Bit Size 3/16 in Screw Anchor Type Concrete Screw Anchor System of Measurement Inch Tip Type Self-Tapping Body Length 4 in Package Quantity 100