Self Locking Thread Insert Compatible Material Metal Compatible Tap Size 1 3/8 In.-12 Drill Bit Size 1 9/32 in External Thread Fit 2A External Thread Size 1 3/8 In.-12 Finish Black Phosphate Insert Diameter 1 25/64 in Internal Thread Fit 2B Internal Thread Size 1 In.-14 Material Steel Material Grade/Class 12L14 Maximum Hole Diameter 1.281 in Minimum Installation Depth 1 3/8 in Overall Length 1 1/4 in System of Measurement Inch Thread Direction Right Hand Thread Type Fine