Long Beach/Bakersfield (CA) & Rifle (CO)
API Thread Gauge at Petros Tubular Services

A connection is only as good as its threads. Our API thread gauge inspection checks that couplings and pin-and-box connections are cut and made up to specification, so they thread together correctly and hold a seal under pressure. Using calibrated API working gauges, our crews verify the critical dimensions that decide whether a connection performs downhole or fails when you need it most.

What we check

  • Lead, taper, and thread height against API working gauges
  • Standoff and made-up standoff position
  • Thread form and pitch
  • Seal and shoulder condition on API and premium connections
  • Coupling, pin, and box condition

Standards & documentation

Gauged to API specifications, including API 5B thread element requirements, and documented for your records. Every job comes with documented results you can put in your records and act on with confidence.

Ready to keep your OCTG in spec?

Tell us what you are inspecting, reclaiming, or grading, and we'll build the right plan.