Thread Check Catalog 2023

THREAD GAGES

THREAD SET PLUG GAGES - TRUNCATED STYLE Set plug gages are used to calibrate adjustable style thread ring gages. Manufactured to X tolerance in class 1A, 2A and 3A Go members and 2A and 3A No Go members. Unified Series set plug gages are available in UNC, UNF, UNEF, and specials. Metric thread set plug gages are manufactured to a class 6g thread set plugs are made to a class X tolerance on pitch diameter and class W tolerance on lead and angle. For class W tolerance - add 35%. Long Form Calibration - add $20.00 per member or $40.00 per assembly.

SETTING THREAD RING GAGES Use thread setting plugs to calibrate and properly set adjustable thread ring gages. Adjustable Thread rings can only be calibrated by this method. Truncated thread setplugs have a thread with both a truncated and a full form thread for both the Go and the No Go member. The full form section inspects and sets the correct clearance and forms at the major diameter of the ring gage. The truncated section controls pitch diameter. A thread ring gage should be set on the full form portion of the setplug – the back portion. The ring is then turned onto the truncated portion and should have the same drag and fit as when turned through the full form. A ring gage which spins quickly through the truncated section or “shakes” usually indicates wear. The ring gage should be repaired by relapping if possible or replaced. See technical page 175 on the evaluations of and procedure for calibrating thread ring gages with thread set plugs.

ThreadTech TM for Windows ® A complete and accurate screw thread program ThreadTech ™ for Windows ® provides data on pitch diameters, minor diameters, gage data, part data, tap data, helix angles, tolerances, crest and root flats, wire sizes, constants and just about anything on threads one would like to know. ThreadTech ™ software is designed for engineers, quality assurance planners, and machinist to save time and to help eliminate human error. This simplifies thread manufacturing and inspection and eliminates time consuming computations and searches for specifications.

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• Uses latest government and industry specifications • 60 degree inch and metric threads • Acme, Pipe, STI, British & American buttress and ISO metric trapezoidal threads • British Pipe Gages and Parts per ISO 228-1 and ISO 228-2 • British Tapered Pipe Gages and Parts per ISO 7-1 and ISO 7-2 • Threads for thread plug gages, thread ring gages, and thread setting plug gages • Default sizes to agree with specifications • All diameters, angles, roots, flats • Pitch diameters • Minor diameters • Helix Angles • Worm gearing calculations utilize Buckingham and Vogel Formulas (various included angles)

• Gage Data • Part Data - internal and external threads • Tap and drill sizes for inch and metric sizes • Product and gage tolerances • Crest and root flats • Wire sizes and constants • Measurement over wires data • Standard plating using max, min, or nominal • Anodize plating calculates penetration • HAE plating • Metric and inch equivalents for double dimensioning • Table and computed values • Length of engagement • Warning alerts and halts for geometrically impossible dimensions and plating thickness • DIN Part 3 and Part 9 Trapezoidal threads for parts, ring gages, caliper gages, and plug gages

MAJOR DIAMETER

THREAD ANGLE

MINOR DIAMETER

PITCH DIAMETER

PITCH

SCREW THREAD NOTATION

WIRE DIA.

MEASUREMENT OVER WIRES

THREE-WIRE METHOD

Download a FREE 30 day full functioning version of ThreadTech ™ for Windows ® at www.threadcheck.com. ThreadTech ™ was designed by a leading gage manufacturer, Osborn Products, Inc. and has been extensively tested to assure accuracy.

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