Knob Lock Series
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Knob Lock Series

The Knob Lock Series from Boluosi includes cylindrical knob locks, tubular knob locks, and dead locks. These are intended for residential use as well as light commercial doors. Materials come in stainless steel, iron, and plastic, with a range of surface finishes—so you can match different market preferences or design styles. The series works with door thicknesses between 35 and 45mm, and it's designed to go in without much hassle while holding up well for everyday use.
Boluosi products are shipped widely to South America, Europe, and Asia. They're built to meet ANSI Grade 3 standards, which means they focus on what actually matters: practical performance, decent durability, and cost-effectiveness for basic door security.

    • Gunmetal Black/Red Bronze - AC/BN-5871 Cylindrical Knob Lock
    • Gunmetal Black/Red Bronze - AC/BN-5871 Cylindrical Knob Lock

    Gunmetal Black/Red Bronze - AC/BN-5871 Cylindrical Knob Lock

    Product Name Cylindrical Knob Lock Model 5871
    Material Iron
    Color AB/BN, AC/BN, PB/BN
    Knob Diameter 57mm
    Rosette Diameter 75mm
    Structure Cylindrical
    Back of Latch 60mm
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Lock Function Entrance(ET), Privacy(BK),Passage(PS),
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
    • Gunmetal Black/Red Bronze - AC/BN-5872 Cylindrical Knob Lock
    • Gunmetal Black/Red Bronze - AC/BN-5872 Cylindrical Knob Lock

    Gunmetal Black/Red Bronze - AC/BN-5872 Cylindrical Knob Lock

    Product Name Cylindrical Knob Lock Model 5872
    Material Iron
    Color AB/BN, AC/BN, PB/BN
    Knob Diameter 57mm
    Rosette Diameter 75mm
    Structure Cylindrical
    Back of Latch 60mm
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Lock Function Entrance(ET), Privacy(BK),Passage(PS),
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
    • Gunmetal Black/Red Bronze - AC/BN-5874 Cylindrical Knob Lock
    • Gunmetal Black/Red Bronze - AC/BN-5874 Cylindrical Knob Lock

    Gunmetal Black/Red Bronze - AC/BN-5874 Cylindrical Knob Lock

    Product Name Cylindrical Knob Lock Model 5874
    Material Iron
    Color AB/BN, AC/BN, PB/BN
    Knob Diameter 57mm
    Rosette Diameter 75mm
    Structure Cylindrical
    Back of Latch 60mm
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Lock Function Entrance(ET), Privacy(BK),Passage(PS),
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
    • Red Copper-AC-5899 Cylindrical Knob Lock
    • Red Copper-AC-5899 Cylindrical Knob Lock
    • Red Copper-AC-5899 Cylindrical Knob Lock
    • Red Copper-AC-5899 Cylindrical Knob Lock

    Red Copper-AC-5899 Cylindrical Knob Lock

    Product Name Cylindrical Knob Lock Model 5899
    Material Aluminum
    Color SS/AB/AC/PB/SB/BL..etc
    Knob Diameter 56mm
    Rosette Diameter 80mm
    Structure Cylindrical
    Back of Latch 60mm
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Lock Function Entrance(ET), Privacy(BK),Passage(PS),
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
    • Antique Bronze - AB-5900 Cylindrical Knob Lock
    • Antique Bronze - AB-5900 Cylindrical Knob Lock
    • Antique Bronze - AB-5900 Cylindrical Knob Lock
    • Antique Bronze - AB-5900 Cylindrical Knob Lock

    Antique Bronze - AB-5900 Cylindrical Knob Lock

    Product Name Cylindrical Knob Lock Model 5900
    Material Aluminum
    Color SS/AB/AC/PB/SB/BL..etc
    Knob Diameter 56mm
    Rosette Diameter 80mm
    Structure Cylindrical
    Back of Latch 60mm
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Lock Function Entrance(ET), Privacy(BK),Passage(PS),
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
    • Imitation Gold - GP Single Open Door Deadbolt Lock
    • Imitation Gold - GP Single Open Door Deadbolt Lock
    • Imitation Gold - GP Single Open Door Deadbolt Lock
    • Imitation Gold - GP Single Open Door Deadbolt Lock

    Imitation Gold - GP Single Open Door Deadbolt Lock

    Product Name Deadbolt lock model D101
    Material Iron/Stainless Steel
    Color AB/AC/PB/SB/BL..etc
    Function Single open 
    Back of Latch 60-70mm (2-3/8'' or 2-3/4'')
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
    • Bright Chrome - CP Double Open Deadbolt Lockset
    • Bright Chrome - CP Double Open Deadbolt Lockset
    • Bright Chrome - CP Double Open Deadbolt Lockset
    • Bright Chrome - CP Double Open Deadbolt Lockset

    Bright Chrome - CP Double Open Deadbolt Lockset

    Product Name Deadbolt lock model D102
    Material Iron/Stainless Steel
    Color AB/AC/PB/SB/BL..etc
    Function Single open 
    Back of Latch 60-70mm (2-3/8'' or 2-3/4'')
    Door Thickness 38-50mm
    Used Bedroom, Kitchen, School, Office, Home
    Cylinder & Keys Cylinder (Brass / Zinc); Keys (Brass / Iron)
    Packaging Color Box / Blister Box
    MOQ 1000PCS
    Delivery Time 45 Days After Receipt Of Deposit
    Payment 30% Deposit, 70% Balance Before Delivery
    Share:
About Us
Wenzhou Boluosi Hardware Co., Ltd.

Wenzhou Boluosii Hardware Co., Ltd. is an advanced door lock manufacturer that integrates research and development, production, sales and service. With over a decade of experience in lockmaking, we specialize in the manufacture of round knob locks, lever handle locks, three-bar locks, lock bodies and related hardware.

 

Guided by the corporate motto "Adorn the World, Brighten Lives", our products are well-received across major cities in China and exported to the EU, the Middle East, Japan, the United States and other regions, enjoying a high reputation among consumers for high quality, stylish designs and reliable after-sales service.

 

Adhering to a people-oriented, market-driven philosophy and keeping pace with advanced technology, we prioritize technological R&D and innovation. Backed by a team of skilled R&D personnel, experienced management and skilled production operators, we have implemented rigorous scientific management and strict quality control at every stage. Our robust lock-making capabilities and advanced production lines enable us to deliver consistent quality.

 

Guided by a commitment to quality, integrity, and continuous improvement, we focus on delivering reliable products, responsive service, and practical solutions that meet our customers' needs. We offer customized design and manufacturing services to address specific project requirements.

 

We welcome the opportunity to work with partners both domestically and internationally, and we are dedicated to earning your trust through consistent performance and fair pricing.

Certificate Of Honor
  • 240902026GZU-001 TVOC_Security
  • 240902026GZU-001_Security
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