API 20E Bolting and Fastener

The API 20E boltings and fasteners are designed to meet the demanding needs of the global oil and gas sector. These components are crafted to withstand high-pressure and high-temperature environments, essential for the challenging conditions of the industry. Whether you are managing intense offshore operations or onshore industrial applications, API 20E boltings and fasteners offer the assurance of quality and resilience.

With a focus on quality and reliability, our selection of API fasteners is engineered to provide unparalleled versatility, catering to various operational requirements.

Enhance the safety of your operations with quality API 20E Boltings and Fasteners today!

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API 20E Boltings and Fasteners


TOTOM Services provides specialised bolting and fasteners that comply with the API 20E standard. Each piece is marked with the API 20E monogram, ensuring adherence to industry-written standards and globally accepted management system specifications.

TThe API 20E standard is a comprehensive guide detailing the qualifications, production processes, and documentation required for Alloy and Carbon Steel bolting and fasteners. These standards are crucial for their use in the Petroleum and Natural Gas Industries, particularly in applications involving high pressure and high temperatures.

TWithin this standard, there are specific requirements set out for three levels of bolting specifications (BSL 1-3) and nine bolting types. This approach ensures a wide range of applications are catered for, maintaining safety and efficiency in demanding industrial environments.

Meanwhile, the Subsea Bolt 20E Xylan Coating is a specialised coating applied to API 20E bolting and fasteners to provide additional corrosion protection in harsh subsea environments. The Xylan coating is a proprietary blend of fluoropolymer resins that create a tough, low-friction surface that resists corrosion and chemical attack. This coating is particularly useful in offshore and subsea applications where exposure to seawater and other corrosive substances can cause premature failure of the bolts and fasteners.

TWith the API 20E standard and Subsea Bolt 20E Xylan Coating, the oil and gas industry can ensure the safety and reliability of equipment and materials used in high-pressure and high-temperature applications.

Specification and Features

The API 20E Bolting is manufactured in several material classes:

ASTM Grades:
  • ASTM A193 – B7, B7M
  • ASTM A194 – 2H, 7, 2HM, 7M
  • ASTM A320 – Grades L7, L7M, L43
Bolting Specification Level (BSL) :
  • BSL-1
  • BSL-2
  • BSL-3
  • Hot Formed Bolts
  • Hot Formed Nuts
  • Machined Stud Bolts and Nuts

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

Frequently Asked Questions about API 20E Boltings and Fasteners

The API 20E is a globally recognised standard for boltings and fasteners used in the oil and gas industry. It specifies the requirements for the production, qualification, and documentation of Alloy and Carbon Steel boltings and fasteners in high-pressure and high-temperature environments. This standard ensures the highest level of quality and safety in the production and use of these crucial components.

The Subsea Bolt 20E Xylan Coating is designed for long-term durability in challenging marine environments. While the lifespan can vary depending on the specific conditions and usage, the coating is formulated to provide exceptional corrosion resistance and withstand harsh subsea elements, ensuring prolonged effectiveness and protection of the boltings and fasteners.

API 20E boltings and fasteners offer several benefits, including enhanced durability, resistance to high pressure and temperatures, and compatibility with a variety of environments in the oil and gas industry. Their robust design ensures long-lasting performance, reducing the need for frequent replacements and maintenance, thereby increasing operational efficiency and safety.

Yes, there are various types of API 20E boltings and fasteners, including hot-formed bolts, nuts, and machined stud bolts. These are available in different material classes and bolting specification levels (BSL-1, BSL-2, BSL-3) to cater to specific application needs in the oil and gas industry.

Contact Us for Enquiries on API 20E Bolting and Fastener Solutions

Looking for durable yet reliable API 20E boltings and fasteners? OTOM Services is here to help. Our team is ready to assist you in selecting the right products, be it DYNLCE Tag LinesWire Rope Dressing, or Durlon® RTJ Gaskets. For enquiries, contact us at (+65) 6600 0860 or email sales@otom-services.com