Import China Factory Supplier Carbon Steel Turnbuckle — Buy in wholesale FOB from Supplier in China

The Carbon Steel Turnbuckle supplied by Qingdao Tuoyuan Rigging Hardware Co., Ltd. is forged from low-carbon steel with a tensile strength typical of ASTM A29 Grade 1018, suitable for tensioning applications in marine and construction environments. It features threaded end fittings with a standard pitch of 1.5 mm per thread, designed for manual adjustment without tools. The body measures between 50 mm and 150 mm in length depending on model, with eyelets sized for 6 mm to 16 mm diameter wire rope or rod. Surface finish is zinc-plated for basic corrosion resistance, suitable for dry or sheltered outdoor use.

This turnbuckle is manufactured using cold-forged carbon steel, a standard process in rigging hardware production that enhances grain structure and impact resistance. Typical material composition includes 0.16 - 0.21% carbon and 0.60 - 0.90% manganese, aligning with common industrial benchmarks. The threaded components are precision-cut to maintain alignment under load, and the internal threads are not welded or brazed - this ensures structural integrity during cyclic tensioning. No alloying elements such as chromium or nickel are added, distinguishing it from stainless variants used in marine saltwater environments.

End users include contractors managing cable stays on temporary bridges, shipyards securing cargo lashings, and industrial rigging teams installing overhead hoists. Buyers typically order in batches of 100 to 500 units, packaged in polyethylene-lined cartons with individual plastic caps to prevent thread damage. Trade terms offered include FOB Qingdao, with lead times averaging 15 to 25 days after deposit. Custom finishes or threading configurations require direct confirmation with the supplier, as standard offerings do not include powder coating or galvanization beyond basic zinc plating.

Qingdao Tuoyuan Rigging Hardware Co., Ltd. operates from Lingshan Town in Jimo, Qingdao, Shandong Province, with a registered address for export compliance. The company is listed as a harbor-tier supplier, indicating verified business registration and export history, though no certifications such as ISO or SGS are confirmed in the listing. Response metrics show no recorded activity, suggesting limited engagement with buyer inquiries, which requires direct follow-up before placing orders.

The supplier specializes in rigging hardware including turnbuckles, shackles, and wire rope fittings, with production focused on carbon steel and forged components. The listing does not state annual output, workforce size, or client names. No factory audits, test reports, or third-party quality documentation are referenced. Buyers should request physical samples and ask for material test certificates before bulk orders, as no claims about compliance with international standards are substantiated here.