Helical Insert Helical Insert Type Free-Running System of Measurement Inch Overall Length 21/64 in Thread Size #12-24 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 #12-24 Drill Bit Size 15/64 in Maximum Hole Diameter 0.171 in Tensile Strength 200 000 psi Outside Diameter 0.28 in Manufacturer Location Globally Sourced Rockwell Hardness C43-C50