API Releases New Guidance on Selecting Bolting Materials

American Petroleum Institute, August 14, 2019

The American Petroleum Institute has published a new technical report offering guidance to O&G companies on selecting the right materials for bolting, a key to safe and reliable operations. API TR 21TR1 - “Materials Selection for Bolting” assists companies in choosing the correct materials based on the environment in which a company is working and helps assure that these important components are resilient in their operating environment.  The guidance also includes bolting recommendations for offshore drilling in both shallow and deep water, addressing saltwater corrosion issues faced by facilities.

API TR 21TR1 also seeks to address industry and regulatory concerns regarding connector bolts in all equipment deployed in offshore and other oil and natural gas exploration and production.  

API TR 21TR1 is now available to purchase at the API Publications Store.

Comments and Discussion

There are no comments yet.

Add a Comment

Please log in or register to participate in comments and discussions.

Inspectioneering Journal

Explore over 20 years of articles written by our team of subject matter experts.

Company Directory

Find relevant products, services, and technologies.

Training Solutions

Improve your skills in key mechanical integrity subjects.

Case Studies

Learn from the experience of others in the industry.


Inspectioneering's index of mechanical integrity topics – built by you.

Industry News

Stay up-to-date with the latest inspection and asset integrity management news.


Read short articles and insights authored by industry experts.

Expert Interviews

Inspectioneering's archive of interviews with industry subject matter experts.

Event Calendar

Find upcoming conferences, training sessions, online events, and more.


Downloadable eBooks, Asset Intelligence Reports, checklists, white papers, and more.

Videos & Webinars

Watch educational and informative videos directly related to your profession.


Commonly used asset integrity management and inspection acronyms.