Self-Locking Insert Kit System of Measurement Metric Insert Diameter Not Applicable Internal Thread Size M10-1.50 M12-1.75 M16-2.00 M8-1.25 Thread Direction Right Hand Thread Type Coarse Overall Length 12.5 mm 17 mm 20 mm Number of Pieces 33 Number of Sizes 4 Material Stainless Steel Material Grade/Class 18-8 Finish Plain Wall Type Heavy Wall Compatible Material Metal Manufacturer Location Made in USA Drive Type Slotted External Thread Size M12-1.75 M16-2.00 M24-3.00