Berdan Cıvata was set up in 1970 , and after many years of constant technological evolution and research is now considered one of the most competent companies in the Turkey and in world for production of bolting materials (heavy hex bolt , stud bolt , nuts , double – ended studs , anchorbolts ,hex bolts , cap screws etc.) applied to the energy, petrochemical, construction, power transfer lines, automotive, and wind energy industries.