
Provide 3-6 person service teams based on customer tier.
These door hinges are designed to be recessed into the door and frame, featuring a fixed pin system for enhanced security—ideal for entrance and external doors in residential settings. Made from satin‑finished stainless steel, they offer superior corrosion resistance and smooth operation, suitable for both indoor and outdoor applications.Available in cold‑rolled steel, hot‑dipped steel, or stainless steel, hinges can be finished with black powder coating or other custom treatments. Standard sizes include 4×3×3×13 mm and 5×3×3×12 mm, with OEM customization supported. Each pair is packaged in an individual box, with 50 boxes per carton for secure shipment.Perfect for home security doors, commercial entries, and heavy‑use installations, these hinges combine durable construction, reliable performance, and aesthetic versatility.







Ruichi have realized one-stop OEM/ODM services from product design – mold making – material sorting – production line – packaging&quality inspection – to-door delivery. To provide satisfactory products and services for customers in 20 countries around the world. We have registered our own trademark in China, United States, Australia and some major marketing countries and achieved global branding.












RUICHI specializes in the production and sales of building hardware and we are focuses on providing building hardware solution.
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