Hex Drive Threaded Insert System of Measurement Inch Insert Diameter 7/16 in Overall Length 25/64 in Internal Thread Size 1/4 In.-20 Thread Direction Right Hand Thread Type Coarse Material Zinc Alloy Material Grade/Class Zamak 3 Finish Plain Drive Size M6 Drill Bit Size 23/64 in Compatible Material Wood Minimum Material Thickness 23/64 in Maximum Hole Diameter 0.359 in Flange Style Flanged Compatible with Manufacturer Model Number 9000 Features Broad External Thread