At Sinsun Hardware, we define the standard for Long Carriage Bolts. As an industry-leading ODM factory, we integrate advanced metallurgical science with high-precision manufacturing to support global infrastructure projects. Our bolts are designed to provide maximum structural integrity in timber and heavy-duty assembly, meeting the most stringent international standards.
Leveraging our 30,000 sqm facility, Sinsun ensures supply chain continuity even in volatile global markets. Our deep-rooted partnerships with raw material giants like XING TAI Steel, combined with our 24/7 smart warehouse operations, allow us to maintain a consistent output of 8,500+ containers annually, insulating our partners from market fluctuations.
By 2025, Sinsun is pioneering new heat treatment technologies that push the boundaries of HRC 28-32 consistency. Our commitment to Information Gain in fastener research means every client receives a product that isn't just a bolt—it's a calculated solution for fatigue resistance and long-term durability.
We provide full R&D support from 3D modeling to mass production, ensuring your specific hardware needs are met.
Through 12+ quality checks, including 1,000+ hour salt spray testing and precision dimensional analysis.
Yes, our logistics team manages complex documentation for markets across the Middle East, South America, and Europe.
