about us
who are we?
Established in 2010 and headquartered in Zhongshan, Guangdong, ZHIGAO Hardware has been a trusted partner to door manufacturers and wholesalers worldwide since launching our export division in 2020. Specializing in precision-engineered door hardware for indoor doors, glass doors, and frameless door systems, we empower door factories to deliver superior functionality and aesthetics.

expertise & innovation
With 13 years of precision engineering, we craft:
Flush Door Locks: Slim-profile mortise locks with silent magnetic latches
Frameless Door Hinges: Concealed hinges for seamless minimalist designs
Glass Door Handles: Tempered glass-compatible handles with anti-slip grips
Custom Solutions: OEM/ODM services for unique architectural projects
zircon brand (EST 2025)
Our new brand Zircon redefines premium door hardware partnerships:
🔹 Market-Driven Development: Co-create products using real-time sales data from North America, Europe, and the Middle East
🔹 360° Support Ecosystem:
Product Matching Guidance: Optimize SKUs for flush/glass/frameless door lines
Technical Training: Installation guides, defect troubleshooting, and certification support
Sales Enablement: Trend reports, photography packs, and cross-selling strategies
🔹 Smart Manufacturing: 45-day lead times with ISO 9001-certified quality control


Serving Global Door Industry Leaders
We partner with:
Indoor Door Manufacturers: Flush door locks | Pocket door hardware | Barn door sliders
Glass Door Producers: Frameless glass door hinges | Tempered glass handle kits
Wholesalers & Contractors: Middle high end lever handles, thumb turn, escutcheons, mortise lock and cylinders.

ZIRCON Stories
Our Process
01.
Market Research
We study and explore the market ourselves, we go to countries to talk with people, customers to hear the real thoughts of the hardware design.
02.
Idea & Concept
Considering with the developing strategies, we build ideas and concepts to proceed.
03.
Design & Production
Design the product moulds to try produce the products and adjust the detailed sizes. Do the quality test to approve the production.
04.
Sales & Service
Fast production and quick response on all services. 10 Years warranty.
