Sherwood: 1/4"X19 BSPF HSS Hexagon Die Nut BS 1127. For use with spanners to clean and repair existing external screw threads. MPN: 5036140184992 EAN: 5036140184992 1/4"X19 BSPF 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: 1/4in. x 19 Thread Standard: BSPF