Thread Plug Gages

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#1 Thread Plug Gauge Supplier Thread plug gages are used to check tolerances of threaded parts according to a certain specification. These highly specific calibration products are used to assure the assembly of mating parts and provide quality control and conformity to standards. Most have two ends: a GO and a NO GO. The GO end must screw all the way on, while the NO GO end must not. The class of fit for each gage measures the amount of tolerance allowed for that class. For example, class 1A has the greatest range of tolerance for unified external screw threads. It is used mainly for parts that need to be assembled quickly and easily, while classes 2A and 2B are the most common and provide a more specific calibration. Class 3A has the closest tolerance and is used for very specific calibrations where safety or strength are concerned. Classes of fit and tolerance vary, so carefully select the class needed for your specific use. Many types of thread gages exist for many different purposes; see below for descriptions. We Stock the Following Thread Gauge Types ACME Thread Plug Gages: This gage is used to check an internally threaded product. Compliant to ASME B47.1 and B1.5-1997, it also comes in three classes of fit: 2G, 3G, and 4G. It also is available with three centralizing ACME threads classes of fit: 2C, 3C, and 4C. ACME Thread Set Plug Gage: This gage is used to calibrate adjustable style matching ACME thread ring gages. Available in three classes of fit, choose from 2G, 3G, and 4G. Its Centralizing ACME threads classes of fit: 2C, 3C, 4C. Compliant with ASME B1.5-1997 and B47.1. ANPT Thread Gages: WESTport provides a complete range of Aeronautical National Form Taper Pipe Thread Plug Gages per SAE AS71051. ANPT thread plug gages are intended for use on pipe, plugs, fittings, and similar devices in aeronautical components and equipment requiring a sealed thread joint and where straight threads and gaskets or O‐rings are inadequate. Flexible Hole Location: Use thi

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