Thread Ring Gauge Dimensions

Plug gage assemblies are marked with the thread size class of fit and pitch diameters.
Thread ring gauge dimensions. Gage crib worldwide inc 6701 old 28th st se suite b grand rapids mi 49546 6937 usa phone. Thread plug gages nominal size go basic all classes all series unified pitch diameters not go x tol go no go xleadtol. Threaded ring gauges check a part s external threads to ensure they fall within tolerance. M series metric thread gages are manufactured per asme b1 16m.
C adjustable thread ring gauge go and no go. A ring gauge or ring gage from grainger inspects the external dimensions of cylindrical manufacturing parts to help ascertain metal strengths and tolerances. Gages may be purchased individually or as assemblies. Functional diameter size measurements gage contact profile for pitch diameter size measurements.
Free technical support from our knowledgeable engineering team with over 100 years experience. Ring gauges can help make design engineering work more exacting and can confirm pipe thread accuracy. A notch on the handle indicates when the threads you re checking are in tolerance. Ring gauge fig 4 construction of ad.
Fig 2 thread ring gauge fig 3 adj. 3b 0 80 unf 0519 0542 0536 0002 0002 0 30 1 64 unc 0629 0655 0648 0002 0002 0 30 1 72 unf 0640 0665 0659 0002 0002 0 30 2 56 unc 0744 077. For setting these gauges setting plugs are needed which are discussed later. Precision gages for quality assurance ring thread gages and setting plugs nominal size x tol.
Standard thread gages are made to a class x tolerance. Ensure the accuracy of npt thread measurements these gauges come with a certificate of calibration traceable to nist that states they ve passed a test for accuracy. Thread ring gages are available in acme straight pipe and taperpipe styles. Thread ring gages also referred to as thread ring gauges are used to check the outside major diameter and pitch diameter limits on threaded parts.
Ensure the accuracy of internal npt pipe thread measurements these gauges come with a certificate of calibration traceable to nist that states they ve passed a test for accuracy. Go no go unified pitch diameter go not go go not go class 2a class 3a 9 16 24 unef 5342 5303 5354 5325 0003 5 8 11 unc 5644 5589 5660 5619 0003 5 8 18 unf 5875 5828 5889 5854 0003 5 8 24 unef 5967 5927 5979 5949. Gauges have a taperlock handle for quickly replacing worn gauges.