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Thread Rings in standard sizes – Our standard thread ring gages (made in the USA) are adjustable and manufactured to an “X” tolerance per ANSI/ASME B1.2. These thread rings are used for checking male parts for quality. We offer these in UNC, UNF, & UNEF. Class 1A, 2A, & 3A. We keep many of these items in stock for fast delivery.
We also offer an array of UNS specialty thread ring gages and standard metric ring gages with delivery time that rivals the industry! Custom threads, “Pre Plate / Before Plate” , “W” tolerance thread gages are offered with little or no additional delivery time.
View descriptions and pricing for standard thread ring gages (pdf).
Our gages meet or exceed all published thread specifications. Certificates adhere to NIST standards. Uncertainties are estimated at a 95% confidence level (K=2). Environmental controls maintain 68°F and 50% maximum humidity. For ISO 17025 or A2LA certification, we send gages to third-party accredited laboratories on request.
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Send specs, tolerances, and quantities. Sam personally replies, usually the same business day.