API 20E Reference Guide

Doxsteel API Certifications

“Wanted to provide you with some pictures of the Doxsteel fasteners we are using. They are holding up extremely well. The BOP has been deployed several times since the fasteners have been installed.”
– Subsea Specialist
“I will say this, if those fasteners were Xylan coated they would already be showing signs of corrosion and we are seeing nothing on the Nickel Cobalt. I am very impressed I will be sending these pictures to the VP’s of Ensco as well. I am recommending that we make the Nickel Cobalt a standard on all subsea fasteners. In saying that all of our fasteners going forward on subsea application’s will need to be 20E BSL-3.”
– Mike Dye| Field Support-Subsea Specialist – NSA RegionEnsco

Download the Full API 20E Specification


Collaboration is the key to growth and implementation. We are committed to bringing you resources related to API 20E

API 20E creates better oversight of the fastener manufacturing process and is the standard that will define bolting for the 21st century. Time-tested production methods have been reevaluated to produce higher quality bolting, and problematic practices have been prohibited to stand up to the industry challenges of today.

API 20E helps bolting vendors prove to their customers that they have properly adhered to industry specifications without cutting any corners. All companies that comply with API 20E are freely searchable in an online database called the API Composite List, giving procurement professionals a second set of eyes to share the risk of fastener evaluation. As a further layer of protection, API 20E provides an easy path for customers to report non-compliance, so each company is constantly driven to maintain and improve production. When it comes to precise operations that determine the wellbeing of a facility and its employees, API 20E is an important factor in today’s bolting environment.

  • Click below to see
    where we are next

    Upcoming Events

  • Learn more
    about Doxsteel
    case studies

    Salt Spray at the Bay.

    “The way I see it, there are applications for everything. I don’t rule anything out when it comes to finding the right tool for the job.”

    Case Studies

  • The Dangers of Hot Bolting

    David Dunning is a Cornell University professor who is perhaps most famous for a paper he co-wrote about ignorance and over-confidence.

    The Dunning-Kruger effect refers to people who are novice or ignorant to things they do not know but believe they are expert

    More News