Self Locking Thread Insert Compatible Material Metal Compatible Tap Size M8-1.25 Drill Bit Size 6.90 mm External Thread Fit 6G External Thread Size M8-1.25 Finish Plain Insert Diameter 7.5 mm Internal Thread Fit 6H Internal Thread Size M4-0.70 Material Stainless Steel Material Grade/Class 18-8 Maximum Hole Diameter 6.9 mm Minimum Installation Depth 9 1/8 mm Overall Length 7 mm System of Measurement Metric Thread Direction Right Hand Thread Type Metric Wall Type Heavy Wall