Helical Insert, Free Running, 304 Stainless Steel, Internal Thread Size 7/16-14, UNC Thread Type, Right Hand Thread Direction, Length 0.656", Free Coil Dia. 0.551", Tap Sizes 7/16-14, Drill Size 29/64", Tensile Strength (PSI) 200, 000, Rockwell Hardness C43-C50, Application For Metal, Package Quantity 10. This item has been restricted from sale in the following state (s): []