Established in 2006, Sinsun Hardware stands as a global leader in high-durability fastening technologies. Spanning a 30,000 m² state-of-the-art facility, our factory integrates precision Taiwanese design, advanced German multi-station cold heading systems, and dedicated in-house heat treatment lines. With an annual capacity surpassing 36,000 tons and domestic logistics pathways serving Moscow, St. Petersburg, Novosibirsk, and major Eurasian industrial hubs, we are the first-choice screw exporter to Russia.
Advanced double-lead thread profile for secure sheet metal applications.
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Zinc-plated carbon steel anchors engineered for low-temperature load bearing.
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Durable, hardened concrete screws with custom-molded high-low thread designs.
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Corrosion-resistant exterior structural screws with type-17 cutting points.
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The industrial landscape of the Russian Federation poses unique challenges to structural integrity. Fasteners used in Siberian mining grids, Moscow construction zones, and Ural metallurgy hubs must meet rigorous mechanical parameters. Cold-temperature brittleness is a primary failure vector. Sinsun's fasteners are specifically heat-treated to retain core ductility down to -60°C, conforming to Russian GOST and international DIN standards.
Our raw materials are sourced from premium steel manufacturers including XING TAI Steel. We implement precise gas-shielded spheroidizing annealing processes to ensure zero surface decarburization. For structural metal panels, our self-drilling and self-tapping screws offer superior pull-out, shear strength, and anti-vibration properties, reducing mechanical degradation under seismic or heavy wind loads.
Download B2B Technical CatalogThrough continuous technological upgrades and capacity expansions, Sinsun Hardware has secured its position as Northern China's largest self-tapping screw exporter.
Engineered specifically for plasterboard installation, structural drywall frames, and light-gauge steel stud framing in cold storage facilities and logistics parks.
Designed for high-speed automatic screwdriver guns to optimize construction cycles.
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Superb thread geometry prevents core damage in premium moisture-resistant sheets.
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Hardened point penetrates steel profiles up to 2.0mm thickness without pre-drilling.
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Black-phosphate coating provides deep pull-out grip in organic wood substrates.
Inquire NowWe process premium C1022A, C1008, and C1045 raw wire rod coils through advanced gas-shielded annealing. This controls structural grain boundaries, eliminating internal micro-cracks before heading.
Our multi-station cold headers operate at high-precision speed. We guarantee dimensional conformity to ±0.02mm and surface roughness of Ra ≤ 0.4µm, assuring high-speed tool compatibility.
Through our continuous belt furnace lines, we control temperature profiles to achieve a core hardness of HRC 28-32 and case hardness of HV 560-650. This maintains high shear strength and prevents heads from shearing off under high torque load.
From Russian sub-zero dampness to coastal salinity, our electro-galvanized, yellow zinc, phosphate, and custom multi-layer coatings (Ruspert / Dacromet) exceed 1,000 hours in neutral salt spray test chambers.
Each production batch undergoes destructive testing on digital torque and tensile testers. This ensures our self-drilling screws perform at double the minimum DIN standard torque capacity.
Operating a 12,000 m² computerized warehouse with 18,000+ pallet capacity, we provide customizable packaging, clear barcode labeling, and moisture-proof packing to ensure container safety in cold-season shipping.
Importing fasteners into the Russian Federation and Belarus requires strict compliance with TR CU (Technical Regulation of the Customs Union) standards. Sinsun Hardware supports industrial importers by providing certified compliance documents, complete mill test certs, chemical analysis reports, and shipping packaging suitable for long-haul rail transit through the Eurasian Land Bridge.
Whether shipping via Vladivostok to Central Russia, or via inland container rail hubs directly to Moscow, St. Petersburg, Kazan, and Nizhny Novgorod, our logistics team optimizes packing arrays to secure cargo weight distributions. This avoids transport delays and cargo shifting, keeping your projects running on-schedule.
High-tensile machine thread fasteners designed to ISO 4017 standards.
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Engineered with exceptional fatigue strength to support heavy cable loads.
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Class 8.8, 10.9, and 12.9 heavy-duty structural hex bolts for bridge engineering.
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Nylon-insert lock nuts and standard hex nuts manufactured for vibration environments.
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Heavy-gauge wire reinforcement mesh to secure industrial concrete floor slabs.
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Black annealed binding wire and galvanized spool wire with high tensile strength.
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High-grade driver bits, socket adaptors, and manual hand tools for rapid installation.
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Dual-thread configurations engineered specifically for multi-layer drywall assembly.
Inquire NowAs structural steel designs become more complex, requirements for structural fasteners are shifting. Fasteners must deliver increased shear capacity while using lighter structural geometries. To address this, Sinsun Hardware's metallurgical lab is developing carbon-boron alloy steel formulations. These alloys yield higher torque resistance and deeper case hardness without compromising the core impact toughness of the fastener.
Furthermore, our research division is optimizing chromium-free micro-layer zinc flake coatings. This eliminates hydrogen embrittlement risks caused by acid-pickling and electroplating, while maintaining high environmental resistance. This development supports international environmental standards and provides exceptional corrosion protection for industrial infrastructure.
Access Technical Papers & R&D ReportsImplementation of AI-driven optical sorting systems to ensure zero dimensional defects across all export lines.
Transitioning to solar-powered wire drawing operations to lower the carbon footprint of structural B2B metal imports.
We primarily use premium carbon steel wire (such as C1022A) for our high-durability self-tapping and self-drilling screws. For higher structural requirements, we use medium-carbon steels like C1008 or C1045, and stainless steel grades (SUS 304, SUS 316) to ensure optimal corrosion resistance and strength.
Our specialized atmosphere-controlled continuous heat treatment process prevents brittle fracture. We control heat temperature gradients and tempering duration to achieve a core hardness of HRC 28-32, while maintaining a durable case hardness. This configuration allows the fastener to flex under dynamic thermal expansions without fracturing, even at temperatures as low as -60°C.
We provide full documentation required for import clearance, including Mill Test Certificates (MTC) conforming to EN 10204 3.1, CE certification, Certificate of Origin (Form A / CO), commercial invoices, detailed packing lists, and test reports confirming compliance with GOST and DIN standards.
Standard production runs are typically completed within 30 to 45 days. Our 12,000 m² smart warehouse maintains rolling stocks of high-demand items for rapid packaging. We offer full OEM and ODM services, including customized outer boxes, inner boxes, small plastic bags, and custom label designs.
To prevent hydrogen embrittlement, Sinsun subjects all high-tensile fasteners to a baking process immediately after acid pickling and electro-galvanizing. This drives out diffusible atomic hydrogen. We also offer mechanical galvanizing and specialized organic coatings (like Ruspert or Dacromet) that do not generate hydrogen during application, ensuring mechanical safety.
We ship through major Chinese ports, including Tianjin, Qingdao, and Shanghai. For Russia, we utilize maritime shipping routes via St. Petersburg or Novorossiysk, or direct overland container rail freight through Manzhouli or Zabaikalsk to Moscow, providing flexibility depending on budget and schedule.
Partner with Northern China's largest manufacturer of self-tapping screws. Get direct access to bulk wholesale pricing, custom metallurgical engineering, and reliable supply chains.
