Established in 2006, Sinsun Hardware has grown into the leading manufacturer and global supplier of high-quality fasteners in Northern China. Operating from a highly integrated 30,000 square meter state-of-the-art facility, Sinsun Hardware produces over 20,000 SKUs of nails, screws, wires, and industrial rivets. With our newly built 12,000 square meter smart warehouse housing over 18,000 pallet capacity, we guarantee efficient global supply chains shipping over 8,500 containers annually to Europe, South America, the Middle East, Southeast Asia, and Russia.
Our commitment to technical excellence is rooted in the quality of raw materials we procure directly from Xingtai Steel, processed using advanced German and Taiwanese precision technologies to ensure unparalleled dimensional accuracy and wear resistance.
Total Production Footprint
Containers Exported Yearly
Fastener SKUs in Stock
The modern light-duty manufacturing sector is shifting rapidly towards high-yield automated production. Industrial-grade fine wire staples like the 1004J (4mm leg length) and 1006J (6mm leg length) have emerged as the gold standard for high-speed upholstery, thin-board joinery, automotive sub-assembly interior trim, and secure packaging.
Automobile interiors demand reliable, ultra-thin wire fastening to secure fabric and leather components to plastic shells. The 1004J fine wire configuration prevents tearing while maintaining robust structural shear resistance.
Global regulations are transitioning away from high-chemical glues towards mechanical fastening. 4mm and 6mm leg staples offer quick-release recyclability without compromising box integrity.
For fine leather, high-tensile fine wire staples prevent surface puckering. The tight crown tolerances enable flush seating to enhance aesthetic appearance and ergonomic safety.
Engineered for high-speed pneumatic tooling, our 1004J and 1006J staples feature a flat wire profile with a chisel point geometry that ensures clean penetration without splintering wood fibers or cracking plastic substrates. The wire profile undergoes precise flat-drawing to keep thickness within strict tolerances.
| Parameters | 1004J Specification | 1006J Specification |
|---|---|---|
| Leg Length (L) | 4.0 mm (±0.10mm) | 6.0 mm (±0.10mm) |
| Crown Width (C) | 10.0 mm | 10.0 mm |
| Wire Diameter / Gauge | 20 Gauge (1.2mm x 0.6mm) | 20 Gauge (1.2mm x 0.6mm) |
| Tensile Strength | 1,000+ MPa | 1,000+ MPa |
| Salt Spray Resistance | 1,000+ Hours (Anti-Corrosion) | 1,000+ Hours (Anti-Corrosion) |
| Wire Hardness Range | HRC 28-32 | HRC 28-32 |
By integrating Taiwanese production control systems and German-imported multi-station heading equipment, Sinsun ensures every single wire band exhibits high dimensional alignment. This minimizes gun jamming rates to virtually zero in high-speed industrial pneumatic tools, drastically reducing production downtime on automated assembly lines.
Our metallurgy begins with premium grade raw material from Xingtai Steel. Spheroidizing annealing and drawing are managed fully in-house. This ensures that the steel structure remains homogeneous, providing stable mechanical properties under sudden shear loads.
Modern supply chain disruptions require high levels of manufacturer integration. Sinsun Hardware's vertical integration model addresses this challenge by managing every stage of production from raw wire processing to shipping. In 2025, Sinsun expanded operations by adding four automated heat treatment lines to ensure total control over metallurgical hardness.
"We don't buy pre-drawn wire. We draw, anneal, and galvanize our own wire bands. This raw-to-finish process maintains dimensional tolerances at ±0.02mm, and ensures that the surface roughness stays at Ra ≤ 0.4μm."
Our smart warehousing facilities span over 12,000 square meters, allowing us to maintain robust stock levels of raw materials and popular fastener sizes. This buffer mitigates transit delays and ensures reliable delivery times even during peak shipping seasons.
Sinsun began with a singular focus: to establish a world-class manufacturing facility specialized in self-tapping screws and fine wire staples in Northern China.
We established our dedicated Export Department, expanding Sinsun's distribution network to major markets across Europe, South America, and the Middle East.
Installed four advanced spheroidizing furnaces and in-house wire drawing lines, allowing control of metallurgical quality from the raw material stage.
Introduced German multi-station cold heading machinery and Taiwan precision tooling, expanding production to high-tolerance specialty screws and staples.
Reached an annual production output of 36,000 tons, shipping over 1,100 containers globally during unprecedented shipping challenges.
Inaugurated our 12,000 square meter smart warehouse with over 1,200 square meters of immediate-ready stock to expedite rapid custom orders.
Added four advanced continuous heat treatment lines, expanding processing capability and ensuring consistent fastener hardness.
For fine fabric, vinyl, or heavy leather wrapping on wooden frames, the 1004J (4mm leg) staple secures the material flush to the wood without penetrating through thin veneer frames. This eliminates aesthetic blemishes and keeps assembly lines moving efficiently.
Pneumatically driven 1006J staples attach acoustic fabrics and synthetic leather directly to thermoformed plastic interior panels. The HRC 28-32 hardness allows our staples to easily pierce rigid polymer composites without bending.
High-volume shipping crates and thin plywood boxes use 1006J staples to fasten outer veneer sheets to structural ribbing. With tensile strength exceeding 1,000 MPa, our staples help protect cargo against severe shifting forces during transit.
