Sherwood: 12X1.50MM HSS Hexagon Die Nut BS 1127. For use with spanners to clean and repair existing external screw threads. MPN: 5036140183797 EAN: 5036140183797 12X1.50MM HSS Hexagon Die Nut Attributes: Dimensions Standard: BS 1127 Hex Width: 1.1in Material: High Speed Steel Thickness: 1/2in Thread Direction: Right Hand Thread Size: M12 x 1.5 Thread Standard: Metric Fine