In the commercial fastening sector, Galvanized 71 Series Staples represent the benchmark for fine-wire pneumatic connections. Operating at 22-gauge thickness (typically 0.75mm × 0.55mm wire profile) and a crown width of 9.0mm, these precision-engineered fasteners are critical in high-vibration applications such as automotive upholstering, aerospace insulation backing, construction vapor barrier installation, and heavy-duty furniture framing.
As a leading ODM partner, our structural engineering focuses on resolving typical deployment failures: buckling under high pneumatic impact, corrosion-induced substrate rot, and collation breakage. By combining structural carbon steel with a strictly monitored electro-galvanization layer (exceeding standard thicknesses), we guarantee staples that drive smoothly into high-density hardwoods and composites without pre-drilling.
Wire Gauge: 22-Gauge (Fine Wire)
Crown Width: 9.0 mm (Outer Dimension)
Leg Lengths Available: 3mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm
Material Formats: Galvanized High-Tensile Steel, Stainless Steel (AISI 304, AISI 316)
Tensile Strength: 1,000+ MPa consistent across wire diameter
Global furniture manufacturers are shifting toward fully recyclable materials. Staples must be free of toxic heavy metals, compliant with European REACH regulations, and feature a protective zinc coating that does not chip or peel during driving, preserving recyclability.
Modern manufacturing lines utilize robotic stapling machines operating at high frequencies (up to 120 cycles/minute). These require staples with strict dimensional tolerances (±0.02mm) to prevent jamming, which can halt assembly lines and cost thousands per hour in downtime.
Global distributors prioritize partners with direct control over raw materials. Rising logistics costs and raw material price volatility demand manufacturers with integrated annealing, wire drawing, and coating lines to protect against sudden price increases.
At our integrated manufacturing facility, we leverage Factory 4.0 principles to balance output volume with high quality. We control the process from raw materials to final packaging. We start with raw materials from Xingtai Iron and Steel Group, followed by in-house spheroidizing annealing and wire drawing to optimize carbon distribution and prevent steel brittle failures.
Our production floors feature imported high-speed wire forming systems and automated glue coating units. This machinery maintains staple strip straightness and consistent adhesion, preventing adhesive fragmentation during shipping. Integrated optical sensors reject any staple strip with structural deviations, ensuring zero-defect delivery.
High-purity carbon steel wire rods from premier domestic steel mills.
Gas-fired furnaces create a uniform grain microstructure for optimal workability.
Drawing wire to exact tolerances of ±0.02mm, enhancing tensile strength to 1,000+ MPa.
Electrolytic zinc deposition ensures uniform corrosion resistance, followed by high-adhesion banding.
Established in 2006, Sinsun Hardware has grown to become 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).
Sinsun Hardware is founded, establishing roots in the regional fastener industry.
Expanding capabilities to enter international markets, setting up dedicated export business units.
Integration of advanced German machinery and high-precision Taiwanese tooling systems.
Reaching 36,000 tons of annual output with four fully operational, automated heat-treatment lines.
In domestic and commercial furniture production, these staples secure upholstery fabrics, leather linings, and webbing to hardwood or MDF frames. The 9mm crown provides sufficient surface area to prevent fabric tearout during use.
Used in door panels, internal trim pieces, and acoustic dampening panels. High-frequency pneumatic tools drive the staples cleanly into polymer-wood composites, withstanding continuous road vibrations.
For outdoor applications, our heavy galvanized layer or optional stainless-steel grades protect against humidity, sea spray, and moisture, preventing early rust damage.
We combine German-engineered multi-station cold heading machines with precision Taiwanese production technology. Our specialized processes, including tail-gripping for drill screws, ensure every fastener is manufactured with utmost accuracy and consistency in our state-of-the-art production facility.
SINSUN operates four dedicated heat treatment lines, allowing for precise and controlled processing time to achieve consistent hardness and enhanced product durability. This in-house capacity ensures both exceptional fastener quality and reliable delivery schedules.
Our 12,000 m² warehouse and professional packaging team allow us to offer flexible OEM and ODM packaging. We provide custom packaging, 3D design previews, and full logistics support to deliver a seamless experience from production to shipment.
Challenge: A tier-1 automotive supplier needed a custom flange bolt with exceptional vibration resistance and weight reduction for high-vibration engine compartments.
Sinsun Solution: Redesigned the component using a tailored alloy and specialized thread-locking feature. Managed full testing suite to meet automotive standards.
Result: 15% weight reduction, passed 2000-hour vibration testing, and seamless integration into client's high-speed assembly line.
Challenge: A marine engineering company required large-diameter bolts with extreme corrosion resistance for a harsh saltwater environment.
Sinsun Solution: Recommended and supplied a duplex stainless-steel grade with a specialized passivation coating. Provided full traceability and material certification.
Result: Project completed with zero fastener failures, exceeding the client's lifecycle durability expectations.
We welcome global clients for monthly site visits, demonstrating our manufacturing strength and quality processes. Sinsun actively participates in international exhibitions to connect and showcase our fastening innovations.
We begin by understanding your application, challenges, and project goals.
Our engineers propose solutions and provide a detailed, transparent quotation with timelines.
We produce and deliver prototypes for your rigorous testing and final approval.
Mass production begins, with scheduled quality checkpoints and updates provided to you.
Every batch undergoes final audit, and all agreed documentation is prepared.
Your order is shipped efficiently, with our team ready for any follow-up or future needs.
We design, manufacture, and supply a comprehensive range of 20,000+ SKUs of reliable fasteners.
The 71 Series Staples are fine-wire pneumatic staples. They feature a 22-gauge wire thickness (0.75mm × 0.55mm) and an outer crown width of 9.0mm. Available leg lengths range from 3mm to 16mm.
Electro-galvanized staples feature a layer of zinc bonded to steel, providing standard rust resistance for indoor uses like dry drywall and indoor upholstery. Stainless steel staples (SUS 304 or SUS 316) offer corrosion resistance for outdoor or saltwater applications.
We offer flexibility. While we are optimized for high-volume production, we also accommodate smaller MOQs for prototype development and new projects. Contact us with your specific needs.
Absolutely. Custom manufacturing based on client drawings is one of our core specialties. We comply with ISO, DIN, ANSI, JIS, and other international standards.
Quality is integrated into every step. We employ Statistical Process Control (SPC), conduct raw material checks, in-process inspections, and 100% final audits for critical dimensions. Detailed inspection reports are available upon request.
Contact Sinsun today for a detailed consultation. Send us your drawings or specifications, and our engineering team will provide a solution-focused quote within 48 hours.
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