T-Anchor, Toggle Anchor Type Male Toggle Anchor, System of Measurement Inch, Anchor Diameter 5/16 in, Thread Size 5/16 In.-18, Overall Length 3 1/4 in, Screw Length 3 1/4 in, Drive Type Not Applicable, Usable Length 2 1/4 in, Material Steel, Finish Zinc Yellow, Drill Bit Size 5/16 in, Compatible Material Block, Brick, Maximum Material Thickness 2 1/4 in, Minimum Material Thickness 1 1/4 in, Maximum Ultimate Shear Strength 900 lb, Maximum Ultimate Tension Strength 2,300 lb