Precision JO-PLUG® Tapped Hole Location Gages
Manufactured by Spence Industries, Inc.
When it comes to inspecting threaded holes, accuracy isn’t optional—it’s essential. Precision JO-PLUG® tapped hole location gages are purpose-built to determine basic position and orientation of threaded holes, exactly as intended by ASME Y14.5-2018.
Precision JO-PLUG® threaded hole location gages establish the true functional axis of the internal thread, which is exactly what ASME Y14.5-2018 intends when controlling position and orientation of threaded features. Precision JO-PLUGS® align with the internal threads pitch diameter, allowing accurate assessment of orientation controls applied to threaded holes, such as perpendicularity or angularity to datum features. Each Precision JO-PLUG® tapped hole location gage is calibrated and ISO/IEC 17025:2017 Accredited, giving users documented confidence, traceability, and proven metrology integrity in every inspection. A Certificate of Compliance is included at no additional cost with every order.
Precision JO-PLUG® also feature a standard .625" projected shank length, creating the longest practical tolerance zone on the market for establishing a highly stable axis and enabling increased data point collection. Whether your vision system or CMM collects data using straight-line scanning paths or circular probing strategies, the extended projection improves certainty, strengthens orientation evaluation, and enhances true positional measurement. Precision JO-PLUG® deliver the verification confidence professional manufacturers require in aerospace, automotive, defense and medical equipment industries.