Sherwood: 1"X11 BSPF HSS Hexagon Die Nut BS 1127. For use with spanners to clean and repair existing external screw threads. MPN: 5036140185036 EAN: 5036140185036 1"X11 BSPF HSS Hexagon Die Nut Attributes: Dimensions Standard: BS 1127 Hex Width: 2.58in Material: High Speed Steel Thickness: 1-1/8in Thread Direction: Right Hand Thread Size: 1in. x 11 Thread Standard: BSPF