The Whitworth thread gauge happens to be the first national screw thread standard, devised and designated by Joseph Whitworth in the year 1841. Later, the only standardization was what little had been done by individuals and companies, spreading a bit within their industries.

The Whitworth thread gauge system was later adopted as a British Standard, which later became BSW {British Standard Whitworth}. Example of the use of the Whitworth thread is during the Royal Navy's Crimean War gunboats. These were the first instance of it being applied.

With the adoption of the British Standard Whitworth by the British railway lines, many of which had formerly used their own standard both for threads and for bolt head nut profiles and raising it standard of manufacturing techniques.

In the US, British Standard Whitworth was replaced when steel bolts replaced iron but were still being used for some aluminium parts during the late 1960s and 1970s when metric tap-based standards replaced the older ones.

American Unified Coarse was mainly based on nearly the same olden one's fractions. The UN thread angle is 60° and flattened crests which Whitworth Crest we're rounded. From 1/4 in up to 1 1/2 in, thread pitch is the same in both systems just that the thread pitch similar in both threads per inch.

The British Association Screw thread standard is today often classed with the Whitworth standard fasteners because it is often discovered in the same machinery as the Whitworth standard fasteners. Nevertheless, it is actually a Metric tap-based standard that makes use of a 47.5° thread angle and has its own set of head sizes. The British Association Screw thread has diameter of 6 mm and smaller and still are certainly used in precision machinery.

The Whitworth 55° angle remains mostly used today worldwide in form of the 15 British standard pipe threads defined in ISO 7, which are mostly used in water supply, cooling, pneumatics, and hydraulic pumps. These threads are created by a number between 1/6 and 6 that comes out from the nominal internal diameter in inches of a steel pipe for which these threads we're designed for. Though these pipe thread designations do not refer to any thread diameter.

It is vastly used in (except in the US) British Standard Pipe thread, as defined by the ISO 228 standard which was formally BS - 2779), uses Whitworth standard thread form. This is because even in the US, personal computer liquid cooling components use the G1/4 thread from this series.

The Leica Thread - mount used on rangefinder cameras and on many companies increasing lenses is 1 17/32 in by 26 turns- per- inch Whitworth, an artefact of this having been developed by a German company dealing in microscope and this is so equipped with tooling being able of handling threads in inches and in Whitworth.

The 5/32 in Whitworth thread have always been the most standard thread for previous if years and it still remains even in the French Meccano Company.