Direct supply of precision industrial fasteners, bolts, drywall screws, and high-performance concrete nails conforming to stringent global criteria.
Double-strand barbed wire stands as the standard benchmark in regional border containment, agricultural security, and defense perimeters. By twisting two individual line wires together, engineers create a synergistic tension configuration. This structural choice provides robust physical performance against dynamic stress, high wind load forces, and unauthorized physical tampering.
Sinsun Hardware leverages precision-drawn steel wire and automated dual-directional twisting machinery to produce double-strand systems of exceptional tensile integrity. Our processes are engineered to yield uniform pitch configurations, keeping barbed nodes locked firmly in position, preventing displacement or slipping when stressed by force.
Our double-strand barbed wire lines are manufactured in compliance with international testing criteria:
| Parameters | Standard Specifications |
|---|---|
| Wire Diameters | 1.6 mm to 3.2 mm (12 BWG to 16 BWG) |
| Tensile Strength | Up to 1000+ MPa (High Tensile Grade) |
| Zinc Coating (Galvanized) | Hot-dip 40 g/m² to 270+ g/m² (Class 3 ASTM) |
| Barb Spacing Options | 3 inches, 4 inches, 5 inches (Customizable) |
| Torsional Engineering | Reverse Twist & Traditional Twist designs |
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).
Get custom quotes for wire diameters, barb layout drawings, and compliance documentation for global tenders.
Get a Quick QuoteHow our vertically integrated production line guarantees superior metallurgy, dimensional consistency, and structural performance.
Our quality starts at the source. Sinsun selects carbon steel coils from XINGTAI Steel, ensuring uniform grain structures and zero internal voids before drawing operations.
In-house gas-fired annealing furnaces treat the steel coils to relieve stress, optimizing ductility and ensuring consistent malleability prior to processing.
Equipped with modern high-speed continuous drawing blocks, we reduce wire to exact gauge tolerances, maintaining high tensile properties across the spool.
By maintaining total processing oversight (annealing, cold heading, and precision drawing) we control factors that affect shear-strength, surface roughness (Ra ≤ 0.4μm), and hard tensile stress (HRC 28-32).
Conventional physical fencing is evolving. Next-generation installations require coatings that endure environmental shifts, coastal microclimates, and extreme mechanical pressures. Sinsun's engineering division is actively pursuing advancements in alloy technology and design configurations.
Integrating a 95% Zinc and 5% Aluminum formulation on the strand wires. Galfan-coated systems demonstrate double the lifespan of traditional hot-dip galvanized wire in salt fog environments.
Development of high-tensile core wire geometries designed to act as physical guides for fiber-optic intrusion detection systems, allowing sensors to register physical shifts.
Innovations in reverse-twisting structural shapes, utilizing high-carbon raw stocks that resist structural cuts while remaining light enough to allow quick installation.
Our long-term R&D roadmap focuses on durability, tensile optimization, and eco-friendly chemistry:
Deploying double-strand barbed wire systems across challenging agricultural, high-risk security, and critical infrastructure sectors.
For national borders, detention facilities, and military installations, our double-strand high-tensile wire is paired with concertina coils to provide multi-layered physical deterrence.
Engineered to resist corrosion from soils and fertilizers, protecting cattle pastures and rural fields. Stays tight across long-span post systems with minimal maintenance.
Securing oil pipelines, electrical substations, and storage yards. Resists high-temperature exposure and atmospheric pollution in demanding chemical zones.
Explore our journey of expansion, from founding in 2006 to achieving a 36,000-ton annual output and adding advanced heat treatment lines by 2025.
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, laying the groundwork for our high-precision wire processing operations.
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 wire products began reaching customers across the world.
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.
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, further strengthening 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, proving our capacity to deliver at scale.
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 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.
We understand that international buyers require robust packaging to protect cargo through maritime transport and long storage cycles. Our specialized packing team provides:
Global procurement teams must balance unit costs, chemical composition, and strict delivery deadlines. Single-source factories that lack vertical manufacturing setups often struggle with price spikes and inconsistent material grades.
At Sinsun, we leverage our large-scale operations to offer competitive bulk pricing while maintaining high quality standards. Our technical division supports clients throughout the design phase, providing advice on wire gauges, spacing patterns, and zinc galvanizing layers for varying climates.
Every month, we welcome clients from across the country for on-site factory visits, demonstrating our transparency and production strength. Here is a glance at our factory infrastructure, client engagements, and team presence.
Answers to common questions regarding structural specifications, galvanization classes, and installation parameters.
Traditional twist wraps the strand wires in one continuous direction, which can make the fence prone to twisting or dynamic sag over time. Reverse twist alternates the wrapping directions between each barb node, balance torsional tension and keeping the line straight across long spans.
Electro-galvanization applies a thin zinc layer (typically under 15 g/m²), which is suitable for temporary installations. Hot-dip galvanization immerses the wire in molten zinc, creating a thicker layer (40 to 270+ g/m²) that protects the steel from corrosion for decades.
For agricultural borders, 12.5 gauge (approx. 2.5 mm) or 14 gauge (approx. 2.0 mm) mild steel wire balances flexibility and cost. High-security installations use 12 gauge high-tensile wire, which offers higher breaking strength and resistance to cutting tools.
We source our raw steel coils from Xingtai Steel and process them in-house through spheroidizing annealing and drawing. This vertical integration allows us to hold wire tolerances to ±0.02 mm and control core hardness within HRC 28-32.
Direct access to our certified products, specialized structural components, and custom packaging systems designed for global export.
