Self Locking Thread Insert Compatible Material Metal Compatible Tap Size M36-4.00 Drill Bit Size 33 mm External Thread Fit 6G External Thread Size M36-4.00 Finish Black Phosphate Insert Diameter 36 mm Internal Thread Fit 6H Internal Thread Size M20-2.50 Material Steel Material Grade/Class 12L14 Maximum Hole Diameter 33 mm Minimum Installation Depth 34 59/64 mm Overall Length 30 mm System of Measurement Metric Thread Direction Right Hand Thread Type Metric Wall Type Heavy Wall