Channel Toggle Anchor, Toggle Anchor Type Toggle Bolt Anchor, System of Measurement Inch, Anchor Diameter 3/4 in, Thread Size 5/16 In.-18, Overall Length 6 in, Screw Size 5/16 in, Screw Length 3 in, Thread Length 2 3/4 in, Drive Type Combination Slotted/Phillips, Head Type Not Applicable, Head Diameter 0.5 in, Head Height 0.2 in, Usable Length 2 1/2 in, Wing Span 2 in, Washer Outside Diameter Not Applicable, Material Steel, Finish Zinc Plated, Color Blue/White, Drill Bit Size 3/4 in