'Helical Insert, Free Running, 304 Stainless Steel, Internal Thread Size 1/8-27, Thread Type NPT, Thread Direction Right Hand, Length 0.273 In., Free Coil Dia. 0.511 In., Tap Sizes 1/8-27, Drill Size 3/8 In., Tensile Strength (PSI) 200,000, Rockwell Hardness C43-C50, For Metal, Package Quantity 10'