BERDAN CİVATA

Berdan Cıvata San. A.Ş. was founded in 1980 in Tarsus as a 150-square-meter lathe workshop with five employees. In 2000, the company moved to a 1,500-square-meter factory building in the Tarsus-Mersin Industrial Zone with 25 employees, including two engineers. Today, on a 33,000 m² site, with 11,000 m²of which is enclosed, and with a workforce of nearly 260 adults—including 32 engineers—it produces bolts, nuts, and similar fasteners at a fully integrated facility in Turkey. This facility utilizes world-class hot and cold forging methods, along with heat treatment plants, electrogalvanizing, zinc lamella coating, and hot-dip galvanizing facilities.
Today, Berdan Bolt is home to the only laboratory in Turkey’s bolt and nut sector equipped with the most comprehensive range of testing equipment and holding an Accreditation Certificate in accordance with ISO EN 17025. This laboratory houses Europe’s most powerful tensile testing machine (500 tons) as well as one of Europe’s most powerful torque testing machines (capable of performing torque tests on bolts up to M72). Equipment includes a notch impact test machine capable of operating at extremely low temperatures such as -150°C, as well as magnetic NDT and ultrasonic crack testing machines, hardness testers, microhardness testers, portable hardness testers, spectral analyzers, macro analyzers, portable analyzers, salt spray test machines, hydrogen embrittlement test machines, surface roughness test machines, and similar devices.
With a well-equipped testing laboratory, a highly skilled technical team with 45 years of expertise, and a wealth of quality and system certifications, patents, and certificates, the company has successfully brought European wind energy giants such as Alstom, Siemens, Vestas, Nordex, and Gamesa, as well as American companies like GE and Chinese firms like Goldwind, all the way to Tarsus, establishing itself as the sole supplier in Turkey. Berdan Bolt produces 10.9-12.9 grade tower assembly bolts, anchor bolts supporting the tower, and the pins and blade nuts connecting the blades to the rotor with Zero Hydrogen Embrittlement Risk. It has manufactured 10-meter-long, 780-kg anchor bolts that support the steel legs of the Izmit Gulf Crossing Bridge—Europe’s second-longest bridge—, and has produced all the bolts for the Anamur-Cyprus Peace Water Pipeline, protecting them with a special coating to ensure they will not rust for 200 years.