API announced the publication of API Spec 5B, 17th Edition, on October 7, 2026, updating requirements for threading, gauging and inspection of casing, tubing and line pipe threads.

Key updates include:

• Validation requirements for optical, laser and other contactless measurement technologies.
• Confirmation that traditional mechanical gauging governs acceptance or rejection when alternative measurement results are disputed.
• Revised buttress tooth thickness gauge dimensions and tolerances.
• Expanded guidance on thread ovality and standoff.
• Clearer calibration and recordkeeping expectations.

For inspection teams, the update is an opportunity to review gauge specifications, measurement methods and calibration procedures against the new edition.

Shanghai Jingoo Petroleum Apparatus Co., Ltd. supplies API thread gauges and professional calibration services. Contact JINGOO to discuss gauge selection and calibration needs for your next inspection project.

Your Partner in API Gages & Precision Measurement

sales@jingooapigage.com
www.jingooapigage.com