Precision-engineered solutions manufactured at our modern facility in Northern China
The 80 Series staple represents a critical industry standard in high-velocity fine wire fastening systems. Characterized by a crown width of 12.8mm (approximately 1/2 inch) and a wire gauge of 21 (measuring 0.90mm by 0.70mm in cross-section), the 80 Series strikes a vital balance between physical strength and low-profile installation footprint.
When utilizing stainless steel variants—primarily Grade 304 and Grade 316—these staples offer superior physical integrity. In marine environments, chemical process plants, or outdoor architectural construction, common carbon steel or electro-galvanized staples suffer from rapid galvanic and atmospheric corrosion. The zinc coating on galvanized alternatives acts only as a sacrificial layer; once breached, the underlying iron substrate oxidizes, causing structural failure (known colloquially as "black streak" staining).
Sinsun Hardware manufactures 80 Series stainless staples under tight metallurgical controls. Our production protocols ensure that each wire strip undergoes precise flattening ratios and continuous multi-wire bonding. This prevents premature leg splay during rapid pneumatic driving cycles.
| Metric / Dimension | Specification Range |
|---|---|
| Wire Gauge | 21 Ga (0.90mm × 0.70mm) |
| Crown Width | 12.8mm (±0.15mm tolerance) |
| Leg Lengths | 4mm to 16mm (5/32" to 5/8") |
| Material Grade | AISI 304 / 316 Stainless Steel |
| Tensile Strength | 1,000+ MPa (Cold-Worked) |
| Salt Spray Rating | 1,000+ Hours (ASTM B117) |
Established in 2006, Sinsun Hardware has expanded from a local startup into a massive global player. Spanning a state-of-the-art 30,000 square meter integrated facility, we stand as Northern China's largest specialized fastener and self-tapping screw production hub.
Our core manufacturing philosophy centers on complete vertical integration. Instead of sourcing pre-drawn wire, we procure premium hot-rolled steel wire rods directly from the prestigious Xingtai Iron & Steel Co., Ltd.. In our own mills, we subject these rods to spheroidizing annealing inside gas-fired, atmospheric-controlled furnaces. This process optimizes the steel's grain structure, ensuring consistent cold-heading ductility and minimizing internal tensile stress.
With German-imported multi-station cold heading machinery and precision Taiwanese wire-forming technology, we achieve tight dimensional accuracies. Our daily operations are backed by a smart 12,000 square meter warehouse system with an 18,000+ pallet capacity, managing over 20,000 SKUs with automated precision.
The chemical profile of stainless steel directly determines its yield strength, shear resistance, and longevity in corrosive environments.
Alloyed with 18% Chromium and 8% Nickel, Grade 304 stainless steel is the standard choice for general outdoor projects and interior environments with elevated humidity.
Alloyed with 16% Chromium, 10% Nickel, and 2% Molybdenum. The addition of molybdenum dramatically enhances resistance to chloride-induced pitting corrosion.
Sinsun employs specialized polymer resins to assemble discrete wire segments into continuous strips.
Modern manufacturing demands localization. Different markets require specific metal properties to meet localized climates, building codes, and safety standards:
By exporting over 8,500 containers annually to the Middle East, Southeast Asia, South America, Russia, and Europe, Sinsun Hardware has optimized its shipping workflows.
Our 12,000 square meter smart warehouse handles orders with high accuracy. This keeps our production lines running efficiently and guarantees that customized shipments arrive on schedule.
Global manufacturing is highly sensitive to lead times, energy caps, and raw material fluctuations. Sinsun Hardware has built a resilient supply chain model designed to absorb macro-economic volatility and provide stable pricing for our global distribution partners:
Our facility keeps a constant buffer stock of premium raw wire rods from Xingtai Steel. This insulates our customers from sudden spikes in raw steel costs. By performing wire drawing, annealing, and final forming in-house, we eliminate reliance on third-party processors, giving us complete control over our production schedule.
Furthermore, the addition of four advanced heat treatment lines in 2025 allows us to achieve consistent mechanical hardness (HRC 28-32) and tensile strength (1,000+ MPa) in record time. We run 12+ strict quality checks on every production batch to verify dimensions, coating thickness, and driving performance.
From a specialized manufacturing startup in 2006 to a leading force in global industrial fastening systems.
Sinsun was founded with a clear focus: to build a modern production base for premium self-tapping screws and fine wire fasteners in Northern China.
To meet growing international demand, Sinsun established its dedicated Export Department, shipping high-quality products to the Middle East, Southeast Asia, South America, and Russia.
We added four spheroidizing annealing furnaces and built wire-drawing facilities to manage fastener quality right from the raw material stage.
We upgraded our facility with advanced multi-station cold heading machines from Germany and forming technology from Taiwan, while expanding our drill-tail screw product lines.
Annual output reached 36,000 tons. We successfully shipped more than 1,100 export containers to our global distribution partners.
We expanded our smart warehouse to 12,000 square meters (featuring an 18,000+ pallet capacity) and created a 1,200 square meter ready-stock zone for fast regional distribution.
Sinsun added four advanced, automated heat treatment lines, boosting production capacity and ensuring consistent product quality with guaranteed lead times.
We welcome international clients to visit our factories, highlighting our manufacturing capacity and commitment to transparency.
In-depth insights into material science, compatibility, and ordering logistics.
Whether you need bulk Grade 304 or Grade 316 80 Series stainless staples, custom-sized structural screws, or reliable OEM packaging, Sinsun Hardware delivers engineering-grade quality on schedule.
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