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Whitworth Hexagon Re-Threading Die Nuts
Our range of Whitworth hexagon re-threading die nuts is designed for cleaning and restoring damaged external British Standard Whitworth (BSW) threads. These die nuts are primarily used for thread maintenance and repair rather than cutting new threads.
Whitworth threads are commonly found in classic machinery, restoration projects and legacy British engineering equipment. The hexagonal design allows use with a standard spanner or socket for controlled thread restoration on bolts and studs.
Browse the selection below and refine by Whitworth thread size to find the correct hexagon re-threading die nut for your application.