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the ultimate fixing for major constructions

Excalibur Screwbolts

About Us

If you’re looking for high performance, reliability and versatility – choose Excalibur.

Excalibur Screwbolts are the creators of the original high-strength twin helix threaded anchor that has revolutionised bolt fixing in the global construction industry.

Named after the legendary sword of King Arthur, Excalibur Screwbolts is a owner-managed business based in Essex, England, serving the global engineering and construction industries in projects across tunnelling, railways, scaffolding, formwork etc.

Our multi-application range of bolts can be secured to the hardest materials including concrete, brick, timber and plate steel replacing all traditional fasteners available.

We are proud to see our bolts being used in landmark engineering projects such as the London 2012 Olympics, the Channel Tunnel Rail Link and the Gotthard Tunnel. Our products also excel in a range of every day applications from railways to sports stadia (for an A-Z of applications click here). Impressively, our twin helix thread innovation provides strength throughout the entire length of the bolt which means a single 20mm Excalibur bolt can support a weight of 13.5 tonnes.

Another example of a major new fixing innovation by Excalibur Screwbolts has been our triple thread bolt. This patented new design provides a secure fixing in the softest of substrates and end grain timber and is expected to find many new niche applications.

Our distribution partnerships throughout Europe, the Middle East, South Africa and Australia ensure Excalibur’s products are available to customers throughout the world. The company’s British heritage remains important to us and believe British designed products are amongst the best in the world.

Excalibur was awarded The Queen’s Award For Enterprise: Innovation in 2009 and again in 2016. We are constantly developing fixing solutions to meet new demand and challenges in the marketplace.




About usWe operate a policy of continual product development and testing to improve on current performance and to create new products.