Thread Gauges for Whitworth Pipe Threads DIN ISO 228 | ULTRA Shop

Buy thread gauges for G threads (DIN ISO 228) from G 1/16" to G 6" online. Premium ULTRA plug & ring gauges for plumbing, HVAC & valves.

Thread gauges for cylindrical Whitworth pipe threads according to DIN ISO 228 are standardly used for inspecting thread joints where pressure-tight joints are not made on the threads. Particularly in the sanitary and plumbing sector, heating, ventilation, and air conditioning (HVAC) technology, as well as in the construction of industrial pipelines, valves, and fluid power components, these inspection instruments ensure flawless assembly and interchangeability. You receive these wear-resistant thread plug gauges and ring gauges from the premium ULTRA brand, manufactured from high-grade, hardened gauge steel for maximum tool life during reliable series testing. All gauges guarantee traceable calibration through optional factory or DAkkS certificates for your quality assurance.