Founded in 1982 in Istanbul with wire production, Dega Demir has evolved into an integrated manufacturing ecosystem specialising in fasteners and welding consumables. Since day one, our focus has been to understand the real needs of industry and deliver their technical counterparts.
We manage the entire process in-house at our facilities in Istanbul, with 25,000 m² of production space and 10,000 m² of warehousing: wire preparation, annealing and phosphate coating, cold forming, secondary operations (auto-lathe/CNC, drilling, slotting, grinding), thread rolling, heat treatment, fully automated surface coating, packaging and, where required, 100% sorting. With our in-house toolroom and process engineering, we achieve rapid ramp-up and high repeatability.
Our product portfolio covers bolts, screws, rivets and custom parts to customer drawings, as well as welding wires. In fasteners, we produce within the Ø4–Ø30 mm diameter and 10–300 mm length range, offering project-specific material and coating alternatives. For welding consumables, we target consistent arc performance through end-to-end process control and suitable packaging options (spool/drum).
For us, quality is not a final check but a discipline embedded throughout the process. Our laboratory capabilities include tensile and hardness testing, coating thickness and corrosion resistance, and metallographic examination; these are supported by full traceability and SPC practices. We underpin our integrated management approach with ISO 9001, ISO 14001, ISO 45001 and IATF 16949.
We provide both standard and project-based solutions to sectors such as automotive, construction, machinery, furniture, energy and metal goods. As a manufacturer that also produces its own semi-finished inputs, we manage quality from within—not from outside. With deep technical expertise, continuous improvement and reliable supply, we promise our customers not only products but a sustainable manufacturing partnership.