The 90 Series staple design represents a critical configuration in narrow crown fastening technology. Utilized in high-load structural joints, cabinetry assembly, and wire lathing installations, these staples must meet rigorous mechanical thresholds. Sinsun Hardware's ODM division produces 90 Series staples using certified high-carbon steel wire cores encapsulated in a uniform electroplated copper coat. This metallurgical synergy delivers dual-action performance: superior drive penetration and a corrosion-resistant barrier that avoids the splitting behavior commonly associated with inferior low-grade staples.
Our raw material sourcing from XING TAI Steel guarantees optimized carbon density and wire uniformity. Our in-house manufacturing process oversees every phase, beginning with spheroidizing annealing and going through to final automated collation, allowing us to maintain tight tolerance levels (±0.02mm) across all physical parameters.
All ODM batches are subjected to 12+ quality checks, including automated dimensional inspection, shear force profiling, and penetration resistance testing.
Tailor your ordering parameters to match specific pneumatic tool settings and environmental performance metrics. We offer full ODM capability on lengths and point styles.
| Staple Type / Series | Wire Gauge | Crown Width | Leg Length Range | Wire Diameter | Tensile Strength (MPa) | Coating Specification | Point Styles |
|---|---|---|---|---|---|---|---|
| 90 Series (Standard) | 18 Ga. | 5.7 mm (0.22 in) | 15 mm – 40 mm | 1.25 mm × 1.0 mm | 900 - 1,150 MPa | Electro-Copper Plated (≥ 3μm) | Chisel Point / Divergent Point |
| 90 Series (Heavy-Duty) | 18 Ga. | 5.7 mm (0.22 in) | 25 mm – 40 mm | 1.26 mm × 1.02 mm | 1,000 - 1,250 MPa | Thick-Film Copper (≥ 5μm) | Precision Chisel Point |
| Custom ODM Specification | 18 Ga. / 17 Ga. | Configurable | 10 mm – 50 mm | Per Engineering Drawing | Up to 1,300 MPa | Dual-layer Electroplating | Divergent / Flat / Pointed |
Sinsun Hardware, established in 2006, is a leading manufacturer and global supplier of high-quality fasteners. Operating from a massive 30,000 sqm integrated facility, we house 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).
Get a Quick QuoteExplore our journey of expansion, technology integration, and quality assurance system development.
Sinsun began with a singular focus in 2006: to build a factory dedicated to self-tapping screws. This foundational specialization established our core expertise from the ground up. It remains the unwavering commitment behind every screw and fastener we manufacture today.
The year 2012 marked a pivotal step for Sinsun with the establishment of our Export Department. From that point forward, our specialized self-tapping screws and fasteners began reaching customers across the world, expanding our mission beyond borders.
In 2015, Sinsun expanded its control over quality by adding four spheroidizing furnaces for raw material processing and in-house wire drawing capabilities. This strategic upgrade moved our production beyond screw manufacturing, beginning with precise control from the raw material stage. It ensures superior consistency and performance in every piece screw we produce.
Our production capability was enhanced in 2018 with new German multi-station cold heading machines. Concurrently, we grew our product line to include a variety of drill tail screws. This dual development strengthened our specialized manufacturing foundation.
Sinsun's growth in 2021 was defined by two key metrics: reaching 36,000 tons in annual production and fulfilling international orders with over 1,100 export containers. This period underscored our capacity to deliver at scale to a global market.
To ensure timely delivery for our clients, we operate a 1,200-square-meter ready-stock warehouse as of 2023. This facility is dedicated to supporting efficient daily distribution and meeting your routine supply needs.
The addition of four heat treatment lines in 2025 significantly boosts our production capacity. This directly translates to greater consistency in product quality and stronger guarantees for on-schedule delivery, meeting your project needs with confidence.
Unlike secondary converters, Sinsun maintains deep chemical validation protocol beginning with wire rod steel from XING TAI Steel. By controlling spheroidizing annealing and wire drawing on-site, we optimize the ferrite-pearlite matrix of the metal. This ensures that every 90 Series staple possesses the exact yield strength required for seamless penetration without shank distortion.
We integrate advanced multi-station cold heading systems from Germany alongside precision tooling mechanisms from Taiwan. For staple collation, this mechanical precision guarantees that spacing, leg length alignment, and chisel angle deviation remain within ±0.02mm, preventing feeder jam-ups in automated pneumatic assembly environments.
Our four continuous-mesh belt heat treatment lines added in 2025 allow for precise hardening phases. This brings the staple core hardness to HRC 28-32. The result is a staple that penetrates dense structural hardwoods like oak and maple without buckling, yet retains the ductility required to withstand dynamic shear stress.
With industrial robotics becoming standard in furniture manufacturing and modular construction, automated stapling systems demand higher tolerances. The traditional standard of manual sorting is no longer sufficient. Modern lines require ultra-straight collation strips with optimized adhesives that cleanly shear during pneumatic firing but remain rigid during distribution handling. Our ODM development focuses heavily on formulation-stable collation adhesives that leave zero residue in high-speed machinery.
Global regulatory frameworks like REACH and RoHS are putting pressure on standard electroplating methodologies. The industry is seeing a major pivot towards eco-friendly thin-film copper plating and trivalent zinc passivations that offer higher resistance values without releasing heavy metals. Sinsun is leading this shift by employing closed-loop eco-plating lines that meet strict international environmental metrics while achieving over 1,000 hours of salt spray resistance for heavy-duty variants.
In high-end residential cabinetry production, 90 Series staples are the standard for securing cabinet backs, drawer guides, and fascia panels. The copper coating prevents surface corrosion from wood moisture, and the narrow 5.7mm crown can be easily countersunk and covered with wood filler for a clean finish.
For stucco and exterior plaster applications, wire lathing must be secured using fasteners that resist wet environmental conditions. The heavy copper-plated structural staple prevents localized galvanic corrosion at the point of contact with the steel lath wire, ensuring structural support over decades.
Heavy wood crates and packaging boxes utilize 90 Series staples for joints that face high shear forces during marine transit. The high tensile strength of Sinsun staples prevents joint failure when shipping containers experience shifting forces at sea.
We design tailored solutions for industrial buyers, ensuring supply continuity, quality tracking, and inventory management.
Utilizing our 12,000 sqm smart warehouse with an 18,000+ pallet capacity, Sinsun provides customized stocking plans for OEM/ODM partners. Industrial manufacturers can maintain lower on-site inventory, utilizing our ready stock and reliable production cycles to reduce cash-flow burdens while avoiding shortages.
With an annual export output of over 8,500 containers, our logistics division optimizes container load layouts, mixed-fastener packaging configurations (combining staples, self-tapping screws, and rivets), and handles import custom clearances to minimize transit costs for global distributors.
Enterprise procurement teams require documented quality metrics. Sinsun provides comprehensive mill test reports, salt spray performance certification, and hardness testing logs to ensure compliance with ASTM and ISO quality standards.
We provide tailormade box packaging, customized label graphics, and specific strip counts to match customer-specific target markets. Our 3D design team supplies pre-production box previews to ensure accuracy prior to final tooling.
With our 36,000-ton annual capacity, we offer a secure buffer against market fluctuations. If local suppliers experience raw material shortages or energy limits, Sinsun's continuous production capabilities protect your supply chain from disruptions.
Copper-coated staples offer a combination of corrosion protection and dry lubrication. The copper layer reduces friction inside the pneumatic tool channel, resulting in less wear on drivers. Additionally, the copper coloration blends well with warm-toned woods like cedar or redwood, providing a cleaner aesthetic look in visible cabinet and furniture joints.
For standard 90 Series specifications, production typically takes 25 to 30 days. Custom ODM packaging, branding, or specific wire modifications can require an additional 7 to 10 days for design proofs and initial setup.
Tool jams are usually caused by variations in leg length, uneven spacing, or weak collation adhesives. Sinsun utilizes precision Taiwanese collation equipment to maintain tolerances within ±0.02mm, ensuring consistent spacing. We also test each batch on standard brand pneumatic tools before packaging.
Yes, we offer complete OEM/ODM packaging services. This includes custom inner boxes, plastic cases, blister packs, and bulk shipping cartons labeled with your company's branding and barcodes.
We customize crown widths, wire gauges, leg lengths, tensile strengths, coating thicknesses, point styles (chisel/divergent), and strip counts per box to meet your specific market needs.
The addition of four new heat treatment lines in 2025 allows us to closely control carbon diffusion. This produces a staple with high tensile strength that drives straight, while maintaining enough flexibility to prevent cracking under vibration.
Get technical advice, custom ODM configurations, and volume-based pricing structures within 24 business hours.
