Sherwood: 16X1.50MM HSS Hexagon Die Nut BS 1127. For use with spanners to clean and repair existing external screw threads. MPN: 5036140183827 EAN: 5036140183827 16X1.50MM HSS Hexagon Die Nut Attributes: Dimensions Standard: BS 1127 Hex Width: 1.3in Material: High Speed Steel Thickness: 5/8in Thread Direction: Right Hand Thread Size: M16 x 1.5 Thread Standard: Metric Fine