Hex Drive Threaded Insert System of Measurement Inch Insert Diameter 21/64 in Overall Length 25/64 in Internal Thread Size #8-32 Thread Direction Right Hand Thread Type Coarse Material Zinc Alloy Material Grade/Class Not Graded Finish Plain Drive Size M4 Drill Bit Size 15/64 in Compatible Material Wood Minimum Material Thickness 3/4 in Maximum Hole Diameter 0.234 in Flange Style Flanged Manufacturer Location Globally Sourced Compatible with Grainger Part Number 4ZU82