RONGYU DAFA
Professional Manufacturer of High-Quality Industrial Fasteners
Specializing in high-tensile bolts, socket head cap screws, nuts, washers, and stainless steel fasteners for the automotive and machinery industries
Our Products
Comprehensive selection of industrial fasteners compliant with DIN, ISO, and ASTM standards
High-Strength Hex Bolts
Grade 8.8 / 10.9 / 12.9 precision bolts for demanding applications
Socket Head Cap Screws
DIN standard internal hex socket screws for industrial use
Nut and Washer Assembly
Complete supporting solutions, including flat washers and spring washers
Stainless Steel Fasteners
SS304 / SS316 corrosion-resistant fasteners for special environments
About Rongyu Dafa
Beijing Rongyu Daifa Trading Co., LTD. is a leading manufacturer and supplier of high-quality industrial fasteners, dedicated to serving the global market with a focus on Southeast Asia.
We specialize in delivering reliable fastening solutions for automotive manufacturers, machinery companies, and industrial facilities. Our product line includes high-tensile bolts, socket head screws, nuts, washers, and stainless steel fasteners.
With rigorous quality control, a mature supply chain, and extensive international trade experience, we have built long-term partnerships with clients across Vietnam and Southeast Asia.
Contact Us
Contact us for quotes and technical support