The 90 Series Copper-Coated Staples serve as a benchmark fastening standard within specialized industrial assembly, fine woodworking, and packaging production. Combining the structural integrity of medium-crown wire dimensions with the superior corrosion mitigation of electrochemical copper plating, these staples offer unmatched pull-out resistance and long-term durability. Unlike standard galvanized fasteners, the copper-coated variant minimizes drive friction, protecting your pneumatic tool components from early wear while providing a polished, high-end finish for premium wooden assemblies.
As a premier global exporter, Sinsun Hardware optimizes the dimensional accuracy, wire chemistry, and coating uniformity of each staple batch, ensuring seamless compatibility with leading pneumatic staplers. Whether utilized in automotive sub-assemblies, engineered flooring, or precision cabinet manufacturing, our products meet the highest tolerances under rigorous stress cycles.
| Parameters | Engineering Specifications |
|---|---|
| Staple Crown Width | 5.7 - 5.8 mm (Medium Crown) |
| Wire Diameter / Gauge | 1.25 mm x 1.0 mm (18 Gauge) |
| Leg Length Options | 15 mm up to 40 mm |
| Core Base Metal | C1022A Carbon Steel / High-Tensile Alloy |
| Surface Treatment | Electro-deposited copper layer (Ra ≤ 0.4μm) |
| Core Wire Tensile Strength | 950 - 1,150 MPa |
| Holding Power Index | Optimum retention in high-density substrates |
Modern supply chains demand resilience. Industrial manufacturers are transitioning from localized suppliers to established, vertically integrated manufacturers in Northern China. This shift ensures consistent metallurgical quality and stable raw material pricing, safeguarding long-term projects against market volatility.
The manufacturing future belongs to smart automation. The integration of continuous, gas-fired heat treatment lines and automated optical dimension sorters guarantees zero-defect batches. High-precision sorting allows our 90 Series staples to perform flawlessly in high-speed, automated robotic nailing systems without jamming.
Global environmental mandates call for sustainable industrial finishes. Our R&D team continuously refines copper-coating techniques to eliminate hazardous chemicals. We ensure complete alignment with RoHS and REACH regulations, making our staples safe for furniture export to highly regulated markets like North America and the European Union.
Sinsun Hardware, established in 2006, is a premier manufacturer and global supplier of high-quality fasteners. As Northern China's largest producer of Self-Tapping Screws, we operate from a massive 30,000 sqm integrated facility that includes modern production zones, a 12,000 sqm smart warehouse with over 18,000 pallet capacity, and multi-language customer support centers. 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).
Sqm Integrated Facility
Fastener SKUs Manufactured
Containers Shipped Annually
Pallet Smart Warehouse Capacity
Sinsun Hardware founded with a vision to revolutionize the high-quality industrial fastener manufacturing sector in Northern China.
Established direct export divisions, successfully expanding into major key markets across Southeast Asia and the Middle East.
Integrated state-of-the-art German-imported multi-station cold heading machinery and precision Taiwanese process technologies.
Achieved 36,000-ton annual output. Added four advanced, automated gas-fired heat treatment lines and an expansive 12,000 sqm smart warehouse to guarantee immediate fulfillment.
We start with premium raw steel materials sourced directly from Xingtai Steel and Ansteel Group (utilizing 10,000+ tons/year of high-quality C1022A carbon steel). In-house spheroidizing annealing and precision wire drawing in our own plant ensure superior microstructure consistency, providing the core base for high-performance staple manufacturing.
Our facility houses over 200 German-imported multi-station cold heading machines capable of producing 1,200+ pieces per minute. By combining these systems with Taiwanese design methodologies, we maintain exceptional physical tolerances and flawless alignment for our collated staple tapes.
Sinsun operates four specialized heat treatment lines with a combined capacity of 20 tons per day. Precise regulation of carburizing and quenching times ensures that our carbon steel core achieves consistent hardness ratings of HRC 28-32, offering sufficient bending ductility without snapping.
Supported by our 12,000 sqm smart facility with an 18,000+ pallet capacity, our packaging division manages custom OEM/ODM designs. We feature automated packing lines handling 3,000+ cartons per hour, loading up to 50 TEUs per day with complete digital barcode tracing.
Procuring raw materials and specialized manufacturing services from Northern China offers significant cost-efficiency and logistics advantages. By locating our operations near major national steel producers, we cut transportation waste, lower energy costs, and maintain rapid turnaround times for custom tooling.
Challenge: A Tier-1 automotive supplier required a custom flange bolt with exceptional vibration resistance and weight reduction for high-stress powertrain applications.
Sinsun Solution: We redesigned the component using a tailored alloy and specialized thread-locking geometry. We ran the parts through our advanced testing suite to meet strict automotive industry standards.
Result: Achieved a 15% overall weight reduction, passed 2,000-hour vibration testing without relaxation, and integrated seamlessly into the client's automated assembly line.
Challenge: A marine engineering enterprise required large-diameter structural bolts with extreme corrosion resistance for a harsh, offshore saltwater application.
Sinsun Solution: We recommended a duplex stainless-steel grade treated with a specialized passivation coating. We also provided full metallurgical traceability and material test report certifications.
Result: The offshore infrastructure project was completed with zero fastener failures, exceeding the client's design life requirements.
Every month, Sinsun hosts international delegations and procurement teams for in-depth factory tours. We display our modern testing centers, warehouse facilities, and cold-heading processes to demonstrate our production capabilities and commitment to quality.
SINSUN
