Sherwood: 5/8"X14 BSF HSS Hexagon Die Nut BS 1127. For use with spanners to clean and repair existing external screw threads. MPN: 5036140282278 EAN: 5036140282278 5/8"X14 BSF 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: 5/84in. x 14 Thread Standard: BSF