YF5831

YF5831 Cylindrical Knob Lock Series

The YF5831 Cylindrical Knob Lock Series is a durable and stylish locking solution designed for residential, commercial, and institutional applications. Made from high-quality 201/304 stainless steel, it offers exceptional strength, corrosion resistance, and long-term reliability, making it ideal for high-traffic environments.

Featuring a screw left-right structure, the YF5831 series ensures a secure and stable installation while maintaining smooth operation. This series is available in four functional options—Entrance (ET), Privacy (BK), Passage (PS), and Dummy (DL)—to suit different security and accessibility needs.

To match various interior styles, this lock series is available in a range of premium surface finishes, including Satin (SN), Oil Rubbed Bronze (ORB), Antique Brass (AB), Antique Copper (AC), Satin Chrome (SC), Chrome Plated (CP), Antique Nickel (AN), and Polished Brass (PB), offering both visual appeal and resistance to wear.

Compatible with wooden and steel doors, the YF5831 series supports standard door thicknesses of 35-50mm, with additional customization available for 45-55mm doors. With its solid construction, functional versatility, and elegant design, the YF5831 Cylindrical Knob Lock Series is an ideal choice for those seeking both security and aesthetic excellence.

Description

Product Name YF5831 Cylindrical knob lock series
Material 201/304 Stainless steel
Main Functions Entrance (ET) / Privacy (BK) / Passage (PS) / Dummy (DL)
Surface Finishing Satin (SN) / Oil rubbed bronze (ORB) / Antique brass (AB) / Antique copper (AC) / Satin chrome (SC) / Chrome plated (CP) / Antique nickel (AN) / Polished brass (PB)
Standard Door Thickness 35-50mm
Special Door Thickness 45-55mm
Suitable For Wooden door and steel door

 

Professional Lock Manufacturer & Security Solutions Provider

Zhongshan Yanfeng Lock Industry Co., Ltd. is a leading manufacturer specializing in the development, production, and global distribution of
high-security mechanical and smart locks. With years of experience in the lock industry, we are dedicated to providing durable, innovative, and customized security solutions
for residential, commercial, and industrial applications.

As a trusted supplier in the **B2B sector**, we collaborate with distributors, wholesalers, project contractors, and hardware brands worldwide,
ensuring premium quality, cost-effective pricing, and reliable customer support. Whether you require **OEM & ODM** services or bulk lock solutions,
we have the expertise and manufacturing capabilities to meet your business needs.

Manufacturing & Quality Assurance

  • Advanced Production Facilities: Equipped with precision CNC machines, die-casting technology, and automated assembly lines.
  • High-Grade Materials: Utilizing stainless steel, zinc alloy, brass, and reinforced aluminum for enhanced security and durability.
  • Strict Quality Control: ISO9001-certified manufacturing with rigorous testing for strength, corrosion resistance, and operational longevity.
  • Customizable Solutions: Support for OEM/ODM production, including branding, keyway configurations, and electronic system integrations.
  • Global Supply Chain: Efficient logistics and stable production capacity to ensure timely delivery for bulk orders.

Our Product Range

We provide a comprehensive selection of **mechanical and smart locks** for various applications. Our products combine **security, functionality, and aesthetic design**,
meeting the high demands of modern architectural projects and security systems.

Mechanical Locks

  • Deadbolt Locks: High-strength security locks with single or double cylinders.
  • Door Knob & Lever Locks: Durable and stylish designs for homes and offices.
  • Entry Handleset Locks: Elegant and robust solutions for main entrances.
  • Mortise Locks: Heavy-duty locks for commercial and industrial applications.
  • Pocket Door Locks: Sliding door locks for space-saving security solutions.
  • Ecological Door Locks: Eco-friendly materials and innovative designs.

Smart Locks

  • Fingerprint Door Locks: Biometric access for enhanced security.
  • Smart Door Knob & Lever Locks: Wireless connectivity with app control.
  • Bluetooth & Wi-Fi Locks: Seamless integration with smart home systems.
  • Smart Glass Door Locks: Ideal for commercial buildings and office spaces.
  • Keypad & RFID Locks: Secure access with PIN codes and card authentication.
  • Remote Access Smart Locks: Cloud-based management for real-time control.

Industry Applications

Our locks are widely used in various industries, ensuring **high-security standards and long-term reliability** for:

  • Residential Buildings: Apartments, villas, and gated communities.
  • Commercial Properties: Offices, shopping malls, and hotels.
  • Industrial Facilities: Warehouses, factories, and logistics hubs.
  • Public Infrastructure: Schools, hospitals, and government buildings.
  • Smart Homes & IoT: Integrated solutions for modern living spaces.

Why Choose Yanfeng Lock?

  • Over 13 Years of Industry Experience: Expertise in lock manufacturing and security innovations.
  • OEM & ODM Services: Tailor-made lock solutions for your business.
  • Global Partnerships: Trusted by distributors and retailers worldwide.
  • Competitive Pricing: Cost-effective solutions without compromising quality.
  • Reliable Customer Support: Professional assistance before and after sales.

Contact Us

For business inquiries, please reach out to us:

Phone: +86 15674756738

Email:
sales@yanfenglock.com

Website:
www.yanfenglock.com

© 2025 Zhongshan Yanfeng Lock Industry Co., Ltd. All rights reserved.