Knife Thread Insert System of Measurement Inch Insert Diameter 19/32 in Overall Length 5/8 in Internal Thread Size 3/8 In.-16 Thread Direction Right Hand Thread Type Coarse Material Brass Material Grade/Class C3604 Finish Plain Drive Type Slotted Drill Bit Size 33/64 in Compatible Material Wood Minimum Material Thickness 1 1/4 in Maximum Hole Diameter 0.516 in Manufacturer Location Globally Sourced Compatible with Grainger Part Number 4ZE56