Helical Insert Helical Insert Type Free-Running System of Measurement Metric Overall Length 27 mm Thread Size M18-2.50 Thread Direction Right Hand Thread Type Coarse Material Stainless Steel Material Grade/Class 18-8 Finish Plain Tang Style Tanged Compatible Material Metal Compatible Tap Size M18-2.50 Drill Bit Size 0.74 in Maximum Hole Diameter 15.2908 mm Tensile Strength 200 000 psi Outside Diameter 21.9964 mm Manufacturer Location Globally Sourced Rockwell Hardness C43-C50