Knife Thread Insert, System of Measurement Inch, Insert Diameter 29/64 in, Overall Length 1/2 in, Internal Thread Size 1/4 In. -20, Thread Direction Right Hand, Thread Type Coarse, Material Brass, Material Grade/Class C3604, Finish Plain, Drive Type Slotted, Drill Bit Size 25/64 in, Compatible Material Wood, Minimum Material Thickness 1 in, Maximum Hole Diameter 0.391 in, Manufacturer Location Globally Sourced, Compatible with Grainger Part Number 4ZE54. This item has been restricted from sale in the following state (s): []