Sherwood: 5/8"X11 UNC HSS Hexagon Die Nut BS 1127. For use with spanners to clean and repair existing external screw threads. MPN: 5036140184114 EAN: 5036140184114 5/8"X11 UNC HSS Hexagon Die Nut Attributes: Dimensions Standard: BS 1127 Hex Width: 1.30in Material: High Speed Steel Thickness: 5/8in Thread Direction: Right Hand Thread Size: 5/8in. x 11 Thread Standard: UNC