Self Locking Thread Insert Compatible Material Metal Compatible Tap Size 5/8 In.-11 Drill Bit Size 37/64 in External Thread Fit 2A External Thread Size 5/8 In.-11 Finish Black Phosphate Insert Diameter 5/8 in Internal Thread Fit 2B Internal Thread Size 1/2 In.-20 Material Steel Material Grade/Class 12L14 Maximum Hole Diameter 0.578 in Minimum Installation Depth 11/16 in Overall Length 5/8 in System of Measurement Inch Thread Direction Right Hand