Explore our premium selection of heavy-duty industrial fasteners, built with strict quality compliance for worldwide distribution.
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, 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 specialise in offering unique fastening solutions tailored to your specifications, providing end-to-end support from concept design to commercial manufacturing.
Galvanized carriage bolts are vital components in modern civil engineering, timber framing, and marine construction. Featuring a domed head and a square neck beneath that prevents rotation during tightening, these fasteners undergo hot-dip galvanization or electro-galvanization to withstand severe environmental exposures.
Extensively used in outdoor wooden structures, bridge building, and highway guardrails where structural resilience and heavy load-bearing are paramount.
With multi-layer corrosion protection coatings, our carriage bolts endure high-salinity coastal atmospheres without structural degradation.
International buyers increasingly demand factory-direct partnerships from China to secure consistent quality compliance, competitive pricing, and reliable logistics scaling.
From our founding in 2006, Sinsun has evolved into a powerhouse fastener manufacturing enterprise.
Established as a dedicated fastener manufacturing hub in Northern China.
Successfully scaled international export operations across multiple continents.
Integrated German multi-station cold heading machinery and advanced metallurgy.
Achieving 36,000-ton annual output with state-of-the-art heat treatment lines.
We ensure rigorous control across every production phase, from raw material sourcing to final packaging and global shipping.
Over 200 German-imported multi-station cold heading machines and 4 dedicated in-house heat treatment lines guarantee ultimate strength.
Core steel sourced exclusively from top-tier mills (utilizing 10,000+ tons/year of certified carbon and alloy steel grades).
Our 12,000 sqm dedicated packaging warehouse enables 24/7 operations, automated sorting, and direct container loading.
Seamlessly serving custom prototype orders alongside massive wholesale container volumes with strict delivery timelines.
Browse through our extensive catalog of high-grade construction nails, screws, rivets, and wire products.
Find expert answers regarding our manufacturing standards, custom capabilities, and global procurement processes.
We offer high flexibility. While optimized for high-volume container production, we also accommodate smaller MOQs for prototype development and specialized pilot projects.
Absolutely. Custom manufacturing based on client architectural or engineering drawings is our core specialty, fully compliant with ISO, DIN, ANSI, and JIS standards.
Quality is embedded at every stage. We utilize Statistical Process Control (SPC), raw material metallurgical testing, in-process dimension checks, and 100% final audits.
Lead times depend on product complexity, volume, and surface coating requirements. Standard production typically ranges between 4 to 6 weeks with firm delivery schedules provided upfront.
