Parallel screw threads of Whitworth form. Requirements Ingestion-build-50790 Who is BS EN 17160

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Parallel screw threads of Whitworth form. Requirements Ingestion-build-50790 Who is BS EN 17160This British Standard specifies limits of sizes, and tolerances, for single start parallel screw threads of Whitworth form, for general engineering use. While Whitworth threads have remained unchanged since the last revision of BS 84 in 1956, the present revision of the Standard has been undertaken on the basis that Whitworth threads will undoubtedly continue to be used for many years, especially on replacements or spare parts. This standard specifies