Knife Thread Insert, System of Measurement Inch, Insert Diameter 21/64 in, Overall Length 3/8 in, Internal Thread Size #4-40, Thread Direction Right Hand, Thread Type Coarse, Material Brass, Material Grade/Class C3604, Finish Plain, Drive Type Slotted, Drill Bit Size 17/64 in, Compatible Material Wood, Minimum Material Thickness 3/4 in, Maximum Hole Diameter 0.266 in, Manufacturer Location Globally Sourced, Compatible with Manufacturer Model Number 500-004, Drive Size 1/4 in. This item has been restricted from sale in the following state (s): []