Our company, which aims to increase the quality of production and customer satisfaction, is able to provide service in all domestic and international construction sites with its team specialized in this field.

Tunnel and mining sector are further developed by the self-drilling bolts which are the most important part of the anchor bolt. Self-drilling bolt is produced according to the API standards. The pipes produced by hot rolling method are produced by opening a round section screw to the outer wall by cold rolling method.

Self Drilling Bolt R-32N R-32S R-38N R-51N
Outer Diameter (mm) 32.0 32.0 38.0 51.0
Inner Diameter (mm) 18,5 15,0 19,0 33,0
Cross-Sectional Area (mm2) 396 488 717 936
Breaking Load (kn) 280 360 500 800
Yield Load (kn) 230 280 400 630
Weight(kg) 3,4 4,1 6,0 8,4