Hexagon Die, Thread Size M18 x 2.5, Metric, Solid, Outside Dia. 1 7/16 in, Die Material Carbon Steel, Finish - Machining Bright (Uncoated), Thread Type Metric, Thread Pitch 2.50 mm, Threads per Inch 2.5, Thread Direction Right Hand, Die Thickness 3/4 in, Die Shape Hex, Hex Size M18