Helical Insert, Helical Insert Type Free-Running, System of Measurement Inch, Overall Length 9/32 in, Thread Size #4-40, Thread Direction Right Hand, Thread Type Coarse, Material Stainless Steel, Material Grade/Class Nitronic 60, Finish Plain, Tang Style Tanged, Compatible Material Metal, Compatible Tap Size #4-40, Drill Bit Size #31, Maximum Hole Diameter Not Applicable, Tensile Strength 200,000 psi, Outside Diameter 0.151 in, Manufacturer Location Made in USA, Rockwell Hardness C43-C50