A pitch diameter is a constant number. Precision JO-PLUG® tapped hole location gages offer a calibrated pitch cylinder parallel to our industry leading .625 long projected tolerance zone. Whether using circle paths or straight lines, more data points are collected.
Precision JO-PLUGS® are the best threaded hole location gage on the market for determining basic position and orientation of tapped holes. Available individually or in Sets in the JO-PLUG® Store.
Spence Industries, Inc. specializes in the manufacture of true position gages for unique applications. Extended projected tolerance zones, tapped holes below counterbores, tapered pitch diameters for irregular surfaces and other custom thread forms are examples of gages available for manufacture.
ASME Y14.5-2018, “Dimensioning and Tolerancing,” Section 2.9 states that “each tolerance of orientation and datum reference for a screw thread applies to the axis of the thread derived from the pitch cylinder.”
Spence Industries, Inc. offers the best gage on the market for determining basic position and orientation of threaded holes. With a calibrated pitch cylinder and longest standard projected tolerance zone, JO-PLUGS® provide positive quality results with repeatability and reproducibility.
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Our repeat and satisfied customers are the leaders and best in meeting American and international quality standards. Customers in the aerospace, automotive, defense, electronic, and medical device industries benefit from our fast and accurate method of determining positional tolerance of threaded holes with repeatability and reproducibility.
Spence Industries, Inc. is proud to be enrolled assisting United States government facilities make exceptional products.
Please use this form to request information or call our HOTLINE (586) 758-3800 for immediate assistance. We will be glad to answer questions on in-stock items or offer our expertise with unique inspection requirements.
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