Self Locking Thread Insert Compatible Material Metal Compatible Tap Size #1-8 Drill Bit Size 7/8 in External Thread Fit 2A External Thread Size 1 In.-8 Finish Black Phosphate Insert Diameter 25.4 mm Internal Thread Fit 2B Internal Thread Size M16-2.00 Material Steel Material Grade/Class 12L14 Maximum Hole Diameter 22.225 mm Minimum Installation Depth 22 7/32 mm Overall Length 20 mm System of Measurement Inch/Metric Thread Direction Right Hand