Class ZZ Pin Gage Assemblies - Black Guard - Metric

Thread Check Inc. offers a complete line of Vermont Class ZZ plain Black Guard ™ pin gage assemblies certified to ISO 9002 and traceable to NIST. Class ZZ plain pin gage assemblies are economically priced and readily available. Vermont class ZZ Black Guard ™ plain pin gage assemblies are specially treated with black oxide coating which penetrates the pin gage .000040" ‐ .000060" deep and acts as a visible wear indicator. The Black Guard™ also prevents rust and corrosion which extends the useful life of the gage. These assemblies are a great Go/No Go inspection tool. All pin gage assemblies are supplied with a reversible style red and green handle to easily identify the go and no go members. If the go side fits in the hole and the no go doesn’t, then your part passes inspection. Each assembly includes 1 line (up to 15 characters) of custom marking. Class ZZ plain pin gage assemblies provide quick and accurate measurements of hole sizes. These pin gages can be used to gage slot widths and check locations. They can be used to set snap gages and size in micrometers. Class ZZ plain pin gage assemblies are offered in a wide range from .006" ‐ 1.0005" and in metric from .20mm to 25.49mm. They are available in plus and minus tolerances of .0002" or .005mm. All class ZZ pin gages are 2.0" in length and made of 52100 tool steel. They have a 10 micro inch surface finish and are round within .0001".All class ZZ pin gages over .060" are marked with size and direction of tolerance. Check out Class ZZ plain pin gages are a must for anyone making frequent and varied measurements.

SKU Description Range Plus/Minus Assembly Type Each
PIN-.20mm-1.29mm-ZZ-PS/E-BG .20mm-1.29mm Class ZZ Plus Black Guard Single End Assembly .20mm-1.29mmPLUSSingle End
$12.00
PIN-.20mm-1.29mm-ZZ-MS/E-BG .20mm-1.29mm Class ZZ Minus Black Guard Single End Assembly .20mm-1.29mmMINUSSingle End
$12.00
PIN-1.30mm-4.56mm-ZZ-PS/E-BG 1.30mm-4.56mm Class ZZ Plus Black Guard Single End Assembly 1.30mm-4.56mmPLUSSingle End
$11.00
PIN-1.30mm-4.56mm-ZZ-MS/E-BG 1.30mm-4.56mm Class ZZ Minus Black Guard Single End Assembly 1.30mm-4.56mmMINUSSingle End
$11.00
PIN-4.57mm-7.14mm-ZZ-PS/E-BG 4.57mm-7.14mm Class ZZ Plus Black Guard Single End Assembly 4.57mm-7.14mmPLUSSingle End
$12.00
PIN-4.57mm-7.14mm-ZZ-MS/E-BG 4.57mm-7.14mm Class ZZ Minus Black Guard Single End Assembly 4.57mm-7.14mmMINUSSingle End
$12.00
PIN-7.15mm-9.99mm-ZZ-PS/E-BG 7.15mm-9.99mm Class ZZ Plus Black Guard Single End Assembly 7.15mm-9.99mmPLUSSingle End
$13.00
PIN-7.15mm-9.99mm-ZZ-MS/E-BG 7.15mm-9.99mm Class ZZ Minus Black Guard Single End Assembly 7.15mm-9.99mmMINUSSingle End
$13.00
PIN-10.00mm-12.94mm-ZZ-PS/E-BG 10.00mm-12.94mm Class ZZ Plus Black Guard Single End Assembly 10.00mm-12.94mmPLUSSingle End
$14.00
PIN-10.00mm-12.94mm-ZZ-MS/E-BG 10.00mm-12.94mm Class ZZ Minus Black Guard Single End Assembly 10.00mm-12.94mmMINUSSingle End
$14.00
PIN-12.95mm-16.12mm-ZZ-PS/E-BG 12.95mm-16.12mm Class ZZ Plus Black Guard Single End Assembly 12.95mm-16.12mmPLUSSingle End
$19.00
PIN-12.95mm-16.12mm-ZZ-MS/E-BG 12.95mm-16.12mm Class ZZ Minus Black Guard Single End Assembly 12.95mm-16.12mmMINUSSingle End
$19.00
PIN-16.13mm-18.99mm-ZZ-PS/E-BG 16.13mm-18.99mm Class ZZ Plus Black Guard Single End Assembly 16.13mm-18.99mmPLUSSingle End
$22.00
PIN-16.13mm-18.99mm-ZZ-MS/E-BG 16.13mm-18.99mm Class ZZ Minus Black Guard Single End Assembly 16.13mm-18.99mmMINUSSingle End
$22.00
PIN-19.00mm-19.30mm-ZZ-PS/E-BG 19.00mm-19.30mm Class ZZ Plus Black Guard Single End Assembly 19.00mm-19.30mmPLUSSingle End
$24.00
PIN-19.00mm-19.30mm-ZZ-MS/E-BG 19.00mm-19.30mm Class ZZ Minus Black Guard Single End Assembly 19.00mm-19.30mmMINUSSingle End
$24.00
PIN-19.31mm-22.49mm-ZZ-PS/E-BG 19.31mm-22.49mm Class ZZ Plus Black Guard Single End Assembly 19.31mm-22.49mmPLUSSingle End
$32.00
PIN-19.31mm-22.49mm-ZZ-MS/E-BG 19.31mm-22.49mm Class ZZ Minus Black Guard Single End Assembly 19.31mm-22.49mmMINUSSingle End
$32.00
PIN-22.50mm-23.99mm-ZZ-PS/E-BG 22.50mm-23.99mm Class ZZ Plus Black Guard Single End Assembly 22.50mm-23.99mmPLUSSingle End
$34.00
PIN-22.50mm-23.99mm-ZZ-MS/E-BG 22.50mm-23.99mm Class ZZ Minus Black Guard Single End Assembly 22.50mm-23.99mmMINUSSingle End
$34.00
PIN-24.00mm-25.49mm-ZZ-PS/E-BG 24.00mm-25.49mm Class ZZ Plus Black Guard Single End Assembly 24.00mm-25.49mmPLUSSingle End
$35.00
PIN-24.00mm-25.49mm-ZZ-MS/E-BG 24.00mm-25.49mm Class ZZ Minus Black Guard Single End Assembly 24.00mm-25.49mmMINUSSingle End
$35.00
PIN-.20mm-1.29mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - .20mm-1.29mm .20mm-1.29mmPlus/MinusDouble End
$18.00
PIN-1.30mm-4.56mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 1.30mm-4.56mm 1.30mm-4.56mmPlus/MinusDouble End
$17.00
PIN-4.57mm-7.14mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 4.57mm-7.14mm 4.57mm-7.14mmPlus/MinusDouble End
$18.00
PIN-7.15mm-9.99mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 7.15mm-9.99mm 7.15mm-9.99mmPlus/MinusDouble End
$18.00
PIN-10.00mm-12.94mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 10.00mm-12.94mm 10.00mm-12.94mmPlus/MinusDouble End
$20.00
PIN-12.95mm-16.12mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 12.95mm-16.12mm 12.95mm-16.12mmPlus/MinusDouble End
$26.00
PIN-16.13mm-18.99mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 16.13mm-18.99mm 16.13mm-18.99mmPlus/MinusDouble End
$32.00
PIN-19.00mm-19.30mm-ZZ-D/E-BG Class ZZ Plus Black Guard Double End Assembly - 19.00mm-19.30mm 19.00mm-19.30mmPlus/MinusDouble End
$37.00
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Additional Info

Replacement Pins packaged in rust preventative and individually labeled with size, tolerance direction, and NIST traceable numbers.

  • Class ZZ  tolerance =  .0002" or .005mm
  • Go ( plus) or No Go ( minus ) tolerance direction
  • Available in Steel or Black Guard™
  • N.I.S.T. traceable
  • .0005" or .02mm sizes
  • .001" or .02mm set increments
  • Tool steel; 60/62 Rc
  • 2.0’’ length
  • 10 micro inch surface finish or better
  • Within .0001" round
  • Marked with size and direction of tolerance on gages over .060"
  • Certificate of Accuracy included
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