Thread Gages

Precision-Ground Thread Gages

Third Coast Gage & Calibration custom designs, manufactures (outsourced), re-manufacturers (in-house) & supplies precision-ground thread gages suitable for all your thread inspection needs.

API Product Specification Thread Gages

We specialized in the design, manufacture & supply of API product specification thread gages for inspection of oil & gas related industry product connections such as required by the API product specifications 5CT, 5B, 5D. 5DP, 5L, 6A, 7, 7-1, 7-2, 11B & others. All gages are provided with calibration certificates traceable to The NIST or internationally recognized standards, as required by the API Q1 & ISO 9001.

We also offer API monogram licensee support & resources including ISO/API quality system development, implementation & maintenance services. This is performed in association with “Quality Systems Development” consulting company.

Custom design & manufacturing services are available. We have over 20 years experience in the API thread gage industry.

All Styles Available Even if not Listed

Contact Us For a Quote of These & Other Custom Gages.

  • API 7, 7-1, 7-2 & 5DP Rotary Shouldered Connections (NC, Reg, FH…)
  • API 11B (P & B sizes…)
  • API 6A VR type (GO/NO-GO…)
  • API 6A VR type (GO/NO-GO…)
  • Thread Gages not Covered by API Specifications (AOH…)
  • ACME
  • Adjustable Rings
  • ANPT
  • AOH
  • BSF
  • BSP
  • BSPT
  • BSW
  • H90
  • API 5L Line Pipe
  • M-Series
  • NPT
  • NPTF
  • NPSM
  • PAC
  • Trapezoidal
  • Standard Thread Gages (UN, GO/NO-GO…)
  • UNC
  • UNF
  • UNEF
  • Whitworth
  • Custom Thread Gage Designing

Call us at (832) 569-2046 or contact us for a quote