Description
Glass Door Cylinder Lock for Single Door 420
No-Drill Glass Door Installation
The Armstrong 420 installs quickly without drilling holes into the glass, helping maintain the strength and appearance of the door. Its clamp-on design allows for easy installation and future maintenance while protecting the integrity of the glass panel.
Cylinder Functions as Door Knob
The integrated cylinder is designed to serve as both a secure locking mechanism and a practical door knob, allowing comfortable opening and closing while ensuring dependable protection for valuable display items.
Durable Zinc Alloy Construction
Manufactured from high-quality zinc alloy, the lock provides excellent durability, corrosion resistance, and long service life. It is available in Chrome, Black, and Golden finishes to complement modern glass cabinets and display furniture.
Compatible with Multiple Glass Thicknesses
The 420 Series is available for 5–6 mm, 8 mm, and 10–12 mm glass thicknesses, making it suitable for a wide range of glass door installations in commercial and residential environments.
Wide Range of Applications
Ideal for retail showcases, jewelry display cabinets, office glass cabinets, museum display cases, boutiques, pharmacies, and residential display furniture requiring secure, attractive, and easy-to-install locking solutions.
Key Benefits
- No-drill installation for single glass doors.
- Cylinder doubles as a convenient door knob.
- Durable zinc alloy construction.
- Available for multiple glass thicknesses.
- Perfect for retail, office, commercial, and residential glass display cabinets.
Technical Specifications
- Brand: Armstrong
- Model: 420
- Product Type: Glass Door Cylinder Lock (Single Door)
- Material: Zinc Alloy
- Lock Type: Mechanical Key-Operated Cylinder Lock
- Installation: No Glass Drilling Required
- Glass Thickness Compatibility: 5–6 mm, 8 mm, 10–12 mm
- Finish Options: Chrome, Black, Golden
- Keys Included: 2 Keys
- Application: Glass Display Cabinets, Showcases, Retail Displays & Office Glass Doors







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