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Imperial UNEF (Unified National Extra Fine) Plug Thread Gauges are precision tools designed to inspect and verify internal threads manufactured to UNEF standards. UNEF threads are characterised by their extra-fine pitch, making them ideal for applications where tight tolerances and precise thread engagement are critical. These gauges feature external threads specifically crafted to UNEF specifications, ensuring compatibility and accurate quality control for components like nuts and tapped holes.
Imperial UNEF Plug Thread Gauges assess the accuracy of internal threads by threading the gauge into the component. The "Go" gauge checks that the thread meets the minimum size requirement by fitting smoothly, while the "No-Go" gauge ensures that the thread does not exceed maximum tolerance by failing to fully engage. This dual-check system is crucial for quality control in industries like aerospace, medical device manufacturing and electronics, where extra-fine threads are commonly used. For instance, these gauges can verify the threads in precision equipment, ensuring components assemble seamlessly and perform reliably under demanding conditions.
Imperial UNEF Plug Thread Gauges are typically manufactured from hardened tool steel or high-grade alloy steel. Tool steel provides excellent durability and wear resistance, maintaining precision even with frequent use. Hardened construction ensures the gauges withstand repeated testing without deformation, while optional protective finishes such as black oxide can enhance corrosion resistance, making the gauges suitable for use in demanding industrial or workshop environments.
These gauges are available in a range of sizes corresponding to UNEF thread standards, covering a variety of diameters and extra-fine pitches. "Go" and "No-Go" gauges are essential for thorough thread inspection, ensuring internal threads meet both minimum and maximum tolerances. Each gauge is engineered to deliver reliable and repeatable results, making them indispensable tools for precision engineering applications.
A: UNEF threads have an extra-fine pitch compared to UNC (Unified Coarse) and UNF (Unified Fine) threads. They are used in applications requiring tighter tolerances and higher precision.
A: These gauges ensure internal threads conform to UNEF standards, guaranteeing precise fitment and reliable performance in high-precision assemblies.
A: Regular calibration is recommended to maintain accuracy, particularly for gauges used in critical or high-precision applications.
A: Yes, UNEF Plug Thread Gauges can verify the accuracy of both new and existing threads, ensuring they meet UNEF standards.
High precision, bespoke manufacture of Imperial UNEF Plug Thread Gauges to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.
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