American Petroleum Institute

API 20F

Corrosion-Resistant Bolting for Use in the Petroleum and Natural Gas Industries

51 companies listed on Oilfield Index hold API 20F (Corrosion-Resistant Bolting for Use in the Petroleum and Natural Gas Industries), issued by the American Petroleum Institute.

Categories these companies serve

Certified companies 51

“API Composite List” means the company holds an active licence for this specification on the American Petroleum Institute’s public Composite List; “claimed by vendor” means the company lists it and the list does not confirm it. Certificate files are available to signed-in members. Claim your listing to keep yours current.