API 20E Bolting

Cansco is proud to announce its new API 20E product line.

The providing API 20E Bolting, Cansco guarantees that the products are manufactured and tested under the most extreme conditions. Cansco is able to provide (BSL) Bolting Specification Levels in the three-existing levels, which prove our commitment with technology and engineering excellence.

This API standard specifies requirements for the qualification, production and documentation of alloy and carbon steel bolting used in the petroleum and natural gas industries when referenced by an applicable API equipment standard or otherwise specified as a requirement for compliance.

The API 20E specification establishes three bolting specification levels (BSL-1, BSL-2 and BSL-3). These BSLs define ascending levels of technical, quality and qualification requirements. Increasing levels of severity reflect increased consequence of bolting failure. The highest level of criticality, BSL-3, is expected to be reserved for those applications in which bolting failure is not an acceptable option. A common definition for BSL-3 application is a “critical application; one through which a bolt failure would result in release of hydrocarbons into the atmosphere.”


This bolting is used in critical Surface & Subsea applications equipment and API specification such as:

  • Valves – Wellheads – Xmas Trees – API 6A
  • Ball Valves – API 6D SS
  • Blowout Preventers – API 16A
  • Manifolds – API 16C/17D
  • Other HPHT Equipment

Contact us

We can now assist you in a cost effective and prompt manner with your API 20E Bolting requirements, for information and pricing contact enquiries@cansco.com or use the form below.