Explore our diverse range of heavy-duty and fine wire fastening solutions engineered for demanding global applications.
For industrial upholstery, structural building wraps, and packaging systems, the choice of fastener dictates the product's lifespan and safety. The 80 Series Stainless Steel Staple is a specialized 20-gauge, medium-crown fastener renowned for its thin wire profile and flat, wide crown. The 12.8mm crown width ensures maximum holding power without tearing fragile fabrics, geotextiles, or building membranes, while the leg lengths ranging from 4mm to 16mm adapt to varying structural depths.
Our stainless steel variants utilize premium SUS304 and SUS316 austenitic stainless steel alloys. By maintaining strict control over the carbon content and alloy composition, we prevent microstructural failures during high-velocity pneumatic insertion. Compared to carbon steel staples with superficial coatings, our solid stainless staples offer complete protection against galvanic and crevice corrosion, ensuring long-term structural integrity in high-moisture or chemical-heavy marine and agricultural environments.
Sinsun Hardware, established in 2006, is 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).
We guarantee reliable and rapid lead times for both standard and special orders by using our integrated facility, optimised inventory, and effective planning. Sinsun Hardware is your strategic partner, committed to delivering quality, innovation, and on-time performance worldwide.
Download Corporate ProfileHow Sinsun Engineering is driving metallurgy research and process automation forward to meet global carbon targets by 2030.
By executing custom spheroidizing annealing and induction-controlled drawing processes, we eliminate trace internal micro-voids in the stainless steel wire stock. This guarantees that our 80 Series staples maintain a Pitting Resistance Equivalent Number (PREN) exceeding 18 for SUS304 and 23 for SUS316 variants, shielding them against chloride-induced stress corrosion cracking.
Pneumatic staple gun jamming translates directly to lost labor productivity. Our technological research focuses on developing high-durability polymer resins with high flexibility and temperature stability, ensuring stable strips that will not break prematurely during shipping, storage, or harsh sub-zero outdoor construction duties.
Responding to strict EU REACH and RoHS mandates, we are phasing out conventional acid baths for cleaner, closed-loop ultrasonic passivation systems. The result is a clean oxide barrier on our stainless steel components that requires zero chromium and delivers a zero-carbon footprint manufacturing trace by 2028.
Direct metallurgical metrics for Sinsun 80 Series Stainless Staples. Review physical behaviors, raw materials, and tolerances.
| Characteristic / Parameter | Grade SUS304 Staples | Grade SUS316 Staples | Test Standard Reference |
|---|---|---|---|
| Wire Gauge Standard | 20 Gauge (Fine Wire) | 20 Gauge (Fine Wire) | AWG / AWMA standards |
| Carbon Content (C) | ≤ 0.08% | ≤ 0.08% | ASTM A276 / EN 10088-3 |
| Nickel Content (Ni) | 8.00% - 10.50% | 10.00% - 14.00% | X-ray Fluorescence (XRF) verified |
| Molybdenum Content (Mo) | N/A | 2.00% - 3.00% | Spectrometric Verification |
| Salt Spray Resistance | > 750 Hours (Zero Red Rust) | > 1,500 Hours (Zero Red Rust) | ASTM B117 / ISO 9227 |
| Tensile Strength range | 1,000 - 1,200 MPa | 1,100 - 1,250 MPa | ASTM F606 / EN ISO 898-2 |
| Dimensional Accuracy | ± 0.02 mm (Leg length) | ± 0.015 mm (Leg length) | Precision Optical Micrometer |
The global pandemic and trade fluctuations underscored one central procurement reality: resilience is non-negotiable. Sinsun's modern smart facility operates over 200 German-imported multi-station cold heading machines and high-speed cold-drawing units. Operating 24/7, this infrastructure produces more than 1,200 pieces per minute per machine with extremely stable quality levels.
By controlling everything from the spheroidizing annealing of raw coil wire sourced from the Ansteel Group down to the packaging line, we eliminate the delays common with subcontractors. Sinsun operates four continuous gas-fired heat treatment lines with an output of over 20 tons per day. Our 12,000 sqm warehouse features computerized ERP inventory tracing (holding over 18,000 pallet positions). Order processing, picking, and palletization happen within hours of clearance, offering an unparalleled level of supply security for global heavy distributors.
From raw chemical analysis down to cold head forming and localized shipping, our vertical structure guarantees 100% control over the quality chain.
Integrated digital processing manages order batches, customs document generation, and container loading schedules to maintain an on-time shipment rate of over 99%.
From our founding in 2006, Sinsun has grown into a leading Chinese fastener manufacturer. Explore our history of growth and technological expansion.
Sinsun Hardware was founded with a dedicated goal: to produce fasteners matching premium international specifications. We established a local manufacturing facility focusing on self-tapping screw lines.
We obtained ISO 9001 certifications and launched global trading, servicing prominent distributors throughout South America, Russia, and the Middle East.
Upgraded our plant with 200+ advanced cold heading tools. We introduced in-house spheroidizing annealing and drawing setups to manage physical properties at the source.
Inaugurated our 12,000 sqm smart storage center (18,000+ pallets capacity) and optimized logistics workflows, pushing our total annual output beyond 36,000 tons.
How we supply specialized products that fulfill specific regional laws and demanding mechanical standards.
80 Series staples are commonly utilized to attach leather and fabric panels within automotive sub-assemblies. Sinsun's precision tolerances prevent detachment during long-term exposure to road vibrations and temperature swings.
For seaside infrastructure, marine seating, and outdoor awnings, conventional fasteners rust quickly. Our marine-grade SUS316 staples resist salt water spray, avoiding unsightly stains and structural failures.
A flat, clean crown is critical when securing construction barriers and moisture wraps. High-precision leg points drive smoothly without tearing sheets, protecting the building envelope from water leaks.
From preliminary consulting to volume deliveries, our systematic process ensures zero-defect quality and clear accountability.
We study your mechanical requirements, environment, and assembly methods to select the ideal wire grade and coatings.
Our engineering group reviews drawings, details specifications, and provides a clear quote within 48 hours.
We generate prototype batches for testing at your facility, ensuring they match your pneumatic equipment seamlessly.
Mass manufacturing begins with SPC checks, hardness checks, and automated sorting to ensure high yield rates.
Combining metallurgy expertise, end-to-end trace controls, and rapid deliveries to secure your manufacturing pipeline.
Our experts optimize connection methods, verify material chemistry, and offer free laboratory tests.
Certified with our proprietary quality management system, we rigorously control the entire process from raw material procurement to cold heading, heat treatment, and surface finishing.
Utilizing an ERP-driven intelligent warehousing system, we dynamically manage extensive standard parts inventory to ensure rapid delivery of routine products.
We offer reverse engineering design, special material customization, thread specification customization, and surface treatments.
Our worldwide service network ensures you receive technical and commercial support anytime, anywhere.
Observe our vertically integrated process ensuring consistent mechanical performance in every batch.
We start with premium raw materials from XING TAI Steel and Ansteel Group (utilizing 10,000+ tons/year of C1022A steel), executing in-house spheroidizing annealing to refine the crystal structure before drawing.
Our German-engineered cold headers handle wire feedstock at high speeds, keeping dimensional variance within ±0.02mm and ensuring perfectly straight shank profiles.
Sinsun operates four continuous, atmospheric-controlled heat treatment lines. This in-house capacity achieves consistent core hardness (HRC 28-32) and fatigue strength exceeding 50,000 cycles.
We combine advanced metallurgy technology with deep engineering experience to support international sectors: automotive, infrastructure, marine packaging, and timber frame construction.
Don't just find a part; develop the optimal solution. Our engineering team partners with you from the concept stage.
Our vertically integrated manufacturing facilities ensure control over every stage of production.
Your confidence is built on our commitment to zero defects.
Providing industrial distributors with over 20,000 SKUs designed to survive heavy service demands.
Technical insight regarding Sinsun order processes, lead times, customization, and metallurgical standards.
We maintain a flexible order volume. For standard 80 Series staples in Grade 304 or 316, the standard MOQ starts at 100 cartons per dimension. We accommodate smaller development orders for customized coating and geometry validations.
Yes. Custom development based on OEM drawings is a core specialty at Sinsun. We conform strictly to standards including ISO, DIN, ANSI, JIS, and AS, supplying raw material inspection records with every production batch.
We follow a zero-defect quality management framework. Checks start at raw material inspection, followed by in-process optical monitoring and mechanical testing (tensile limits, surface roughness Ra ≤ 0.4μm, HRC, and salt spray exposure).
Standard catalog parts are shipped within 4 to 6 weeks from our 12,000 sqm warehouse. Complex or customized requirements requiring specialized passivation processes are estimated with fixed schedules during quotation.
Yes. We supply pre-production samples for tensile, geometry, and compatibility testing on your pneumatic tools before kicking off volume runs. Contact our technical department to request samples.
Our custom packaging options protect fasteners against environmental elements during transport and storage. Under normal indoor storage conditions, our premium adhesive-collated staples resist degradation for years.
Partner with Sinsun Hardware to access premium metallurgical engineering, automated supply processes, and consistent quality.
Submit your detailed requirements, and our engineering team will provide a solution-focused quotation within 48 hours.
Contact Our Engineering TeamExplore additional precision options from Sinsun Hardware's extensive fastener selection.
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