T-Anchor Toggle Anchor Type Male Toggle Anchor System of Measurement Inch Anchor Diameter 1/4 in Thread Size 1/4 In.-20 Overall Length 1 3/4 in Screw Length 1 3/4 in Drive Type Not Applicable Usable Length 1 in Material Steel Finish Zinc Yellow Drill Bit Size 5/16 in Compatible Material Block Brick Maximum Material Thickness 1 in Minimum Material Thickness 1 in Maximum Ultimate Shear Strength 700 lb Maximum Ultimate Tension Strength 1 500 lb