Cooper Turner Beck Group (CTB), a global leader in safety-critical fastening solutions, is proud to announce its successful achievement of the Deutsches Institut für Bautechnik (DIBt) certification for its large diameter direct tension fasteners ranging from M36 to M72. CTB Group achieved this certification – a process that typically takes three years – in just nine months, demonstrating its technical expertise and dedication to quality.
Setting a New Standard in Certification Efficiency
DIBt certification, administered by the German Institute for Construction Technology, is considered the gold standard for construction product compliance across Germany and Europe. This prestigious certification ensures that CTB Group’s fasteners meet stringent safety, durability, and environmental standards, aligning with both national and European regulations.
With this certification, CTB Group is now authorised to supply its large diameter fasteners to critical infrastructure projects in Germany, including those in German waters. From bridges to wind turbines, CTB Group’s products will be key to ensuring the safety and longevity of essential construction projects.
A Rigorous Journey Condensed Into Nine Months
The path to certification was rigorous, beginning with CTB’s submission of an initial 30-page technical specification document outlining every aspect of their product design and manufacturing process. Following this, the CTB team worked diligently to prepare for onsite audits conducted by DIBt’s technical experts. These audits involved a thorough examination of the entire manufacturing process, from material sourcing to the assembly of fasteners.
Throughout the process, the CTB team carefully documented every detail, ultimately compiling a 1,000-page submission. From technical specifications and safety measures to the results of extensive testing on the fasteners’ strength and durability, this comprehensive document covered every aspect of the certification requirements. CTB’s dedication to detail and quality ensured that every stage of production met the rigorous DIBt standards.
Achieving certification in such a short time frame is a testament to the engineering team’s expertise and CTB Group’s dedication to precision and quality. “This accomplishment sets a higher standard for efficiency in technical audits,” said Dave Briggs, Chief Technical Officer at CTB Group. “We are incredibly proud of our team’s dedication to delivering top-tier products that meet the highest international standards.”
Impact on the Industry
Large diameter fasteners are essential in critical infrastructure projects where safety and reliability are paramount. By achieving DIBt certification, CTB Group has positioned itself among an elite group of global leaders in the construction industry such as BASF and Saint Gobain. This certification not only reinforces CTB Group’s reputation for quality but also assures clients that they are investing in the best products available on the market.
Looking Ahead
With this certification, CTB Group is well-positioned to expand its presence in major infrastructure projects worldwide. Whether supporting renewable energy installations or enhancing the safety of bridges and high-rise buildings, CTB Group’s certified fasteners will play a crucial role in shaping the future of global construction.
About CTB Group
Cooper Turner Beck Group (CTB) is a global leader in the manufacturing and supply of safety-critical fasteners and bolting solutions, serving industries such as wind energy, oil & gas, power generation, and construction. With over 100 years of combined expertise across its subsidiaries – Cooper & Turner, Beck Prosper, and Beck Industries – our dedication to quality, sustainability, and customer satisfaction underpins our end-to-end, comprehensive service. From development to manufacture and distribution, we ensure quality and reliability in the world’s most demanding environments and complex structures. For more information, visit our website.

