Self-Locking Insert Kit, System of Measurement Metric, Insert Diameter Not Applicable, Internal Thread Size M3- 0.50, M4- 0.70, M5- 0.80, M6- 1.00, M8- 1.25, Thread Direction Right Hand, Thread Type Coarse, Overall Length 6.5 mm, 7.5 mm, 10.5 mm, 12.5 mm, Number of Pieces 50, Number of Sizes 5, Material Steel, Material Grade/Class 12L14, Finish Plain, Wall Type Heavy Wall, Compatible Material Metal, Manufacturer Location Made in USA, Drive Type Slotted. This item has been restricted from sale in the following state (s): []