Helical Insert Helical Insert Type Free-Running System of Measurement Inch Overall Length 21/32 in Thread Size 7/16 In.-20 Thread Direction Right Hand Thread Type Fine Material Stainless Steel Material Grade/Class 18-8 Finish Plain Tang Style Tanged Compatible Material Metal Compatible Tap Size 7/16 In.-20 Drill Bit Size 29/64 in Maximum Hole Diameter 0.3834 in Tensile Strength 200 000 psi Outside Diameter 0.55 in Manufacturer Location Globally Sourced Rockwell Hardness C43-C50