The largest self-tapping screw and industrial fastening production base in northern China.
Sinsun Hardware, established in 2006, is a leading manufacturer and global supplier of high-quality fasteners. As Northern China's largest producer of Self-Tapping Screws, we operate from a gigantic 30,000 sqm integrated facility that includes modern production zones, a 12,000 sqm smart warehouse (18,000+ pallet capacity), and multi-language customer support centres. Our yearly supply of over 8,500 containers consistently services key global markets such as the Middle East, Southeast Asia, South America, and Russia.
Our production prowess is driven by German-imported machinery, precision Taiwanese technology, and a dependable staff of trained specialists. We offer over 20,000 SKUs of nails, screws, wires, and rivets, each undergoing 12+ stringent quality checks to assure outstanding polish (Ra ≤ 0.4μm), corrosion resistance (1,000+ hours salt spray), dimensional accuracy (±0.02mm), high strength (1,000+ MPa), and consistent hardness (HRC 28-32).
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From Sinsun's founding in 2006, Sinsun has grown into a leading Chinese fastener manufacturer. Explore our journey of expansion, from establishing exports in 2012 and integrating German technology in 2018, to achieving a 36,000-ton annual output and adding advanced heat treatment lines by 2025.
Sinsun began with a singular focus: to build a factory dedicated to self-tapping screws. This established our core expertise from the ground up.
Our Export Department was founded, opening up access to the international markets and expanding our mission beyond borders.
Added 4 spheroidizing furnaces and wire drawing systems. Precise quality control right from the raw material stages.
Upgraded cold heading capability with German multi-station equipment, concurrently broadening our lines of drill tail fasteners.
Reached 36,000 tons of annual production capacity and fulfilled over 1,100 export containers globally.
Operated a 12,000 sqm warehouse with a massive 1,200 sqm dedicated area for ready stock items to ensure prompt shipment deliveries.
Commissioned 4 new state-of-the-art continuous heat treatment lines to ensure high-tensile strength and quick turnaround times.
In modern assembly, manufacturing, and construction industries, structural stapling systems are crucial. No longer confined to simple stationery tasks, industrial staples serve as high-tensile, corrosion-resistant anchoring systems used in residential framing, automotive upholstery, heavy-duty logistics palletization, and structural gypsum boards. Purchasing authorities, procurement managers, and engineering leads demand fasteners that guarantee dimensional stability, strict structural tolerances, and batch-to-batch consistency. As a leading staples manufacturer, Sinsun Hardware presents a technical evaluation of manufacturing technologies, material optimizations, and supply chain efficiencies.
"Selecting the proper fastener grade and structural design isn't just about fastening speed; it's about structural stability, preventing shear failure under dynamic load, and ensuring optimal cost per unit across complex production cycles."
The industrial staple market relies heavily on metallurgical precision. Manufacturers differentiate their products based on parameters such as wire gauge thickness, tensile strength (measured in megapascals - MPa), wire crown widths, and leg point geometry (such as divergent points or chisel points). Global demand spans across several key categories:
To support these applications, leading manufacturers must control the structural properties of raw steel wire. Sinsun Hardware ensures total quality management by vertically integrating the manufacturing chain, starting directly with raw wire rod sourcing from premium steel producers like XING TAI Steel.
Many global enterprises rely on Chinese factories for large-volume industrial fastener orders. This reliance is driven by advanced machinery integration and localized manufacturing clusters, which deliver significant efficiencies. Vertical integration plays a key role here; factories process wire starting from raw hot-rolled steel rods through to the finished box of fasteners.
Sinsun Hardware's process includes in-house spheroidizing annealing. By heat-treating steel wire in gas-fired annealing furnaces before cold heading, we refine the steel's grain structure. This step reduces internal stress and maximizes the metal's ductility. The wire is then drawn through multi-die wire drawing machines, achieving uniform wire diameters with deviations kept below ±0.02 mm.
When forming staples, multi-wire band processing equipment binds individual wires into cohesive bands using synthetic polymers. These bands are then sheared and bent to the exact specifications of major staple styles, including 10J, 71 Series, 80 Series, 90 Series, and P-Series. As a result, the staples resist splitting during rapid tool firing in industrial environments.
Integration of German cold heading systems alongside Taiwanese tooling dies guarantees absolute dimensional tolerances (±0.02mm) across high-speed production runs.
Four automated continuous mesh belt heat treatment lines provide precise control over carbon potential, yielding hardness specs of HRC 28-32.
Electro-galvanization and specialized polymer top-coats allow our staples to withstand over 1,000 hours of salt spray testing (ASTM B117 standards).
Understanding standard industrial classification formats is essential when purchasing from bulk suppliers:
Sinsun Hardware ensures that each staple series matches standard pneumatic tool specifications, preventing feed jams, broken driver blades, and tool wear.
Procurement teams often face supply chain bottlenecks, including fluctuating raw material costs, inconsistent batch quality, and shipping delays. Sinsun Hardware addresses these issues with our 12,000 sqm smart warehouse, which maintains an 18,000+ pallet capacity. By keeping a large inventory of standard fastener dimensions on hand, we can shorten shipping times and buffer against supply chain disruptions.
We also offer comprehensive OEM and ODM support. Clients can customize packaging sizes, request custom wire coatings, and verify structural designs using 3D rendering. This ensures every product arrives ready to match local market preferences and application standards.
