Untitled Document Metric Die Nut M12 x 1.75 12 mm Dienut Left Hand Metric ISO-Thread din 13 Dienuts are only used by hand and are hexagonal shaped for use by a spanner. Dienuts are used to reclaim damaged threads or to clean up existing threads. Industrial quality tools suitable for intensive usage. Please do not confuse these top of the range products with cheaper alternatives !!! (Caveat emptor) Application: For reclamation of screw threads. Tolerance : 6g Chamfer Lead : Two Threads Surface treatment : Bright Material : HSS – High Speed Steel . .