Helical Insert Helical Insert Type Free-Running System of Measurement Inch Overall Length 1/2 in Thread Size 1/2 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 1/2 In.-20 Drill Bit Size 33/64 in Maximum Hole Diameter 0.4459 in Tensile Strength 200 000 psi Outside Diameter 0.62 in Manufacturer Location Globally Sourced Rockwell Hardness C43-C50