Helical Insert, Free Running, 304 Stainless Steel, Internal Thread Size M4x 0.7, Thread Type MC, Thread Direction Right Hand, Length 6mm, Free Coil Dia. 5.33 mm, Tap Sizes M4x 0.7 STI, Aluminum Drill Size 4.2 mm, Tensile Strength 200, 000 to 250, 000 PSI, Rockwell Hardness C43-C50, For Metal, Package Quantity 12