Product Details
LD-057 Zinc Alloy Mortise Lock Body
Heavy-duty zinc alloy mortise lock body with multiple latch configurations. Designed for reliable performance in wooden, steel, aluminum, and security doors.
Core Features
- Premium zinc alloy construction with stainless steel reinforcements
- Three lock configurations: single latch, latch + deadbolt, and 3-hook
- Four standard backset sizes for universal door compatibility
- Precision-machined internals rated for 200,000+ cycle durability
- Multiple finish options including gold and chrome plating
- Compatible with wooden, steel, aluminum, and security door types
Application Scenarios
- Residential wooden door mortise lock installations
- Commercial steel door security lock body replacement
- Aluminum frame door mortise lock OEM manufacturing
- Hotel room door multi-point mortise lock systems
- Office building entrance door latch and deadbolt bodies
- Security gate and reinforced door mortise lock bodies
FAQ
What is the difference between single latch and latch + deadbolt configurations?
The single latch configuration provides basic latching for interior doors where security is not the primary concern. The latch + deadbolt configuration adds a deadbolt bolt that extends into the door frame for enhanced security, making it suitable for entrance doors and rooms requiring higher protection.
How do I determine the correct backset size for my door?
Measure the distance from the edge of the door to the center of the bore hole (the hole where the handle or knob is installed). Common backset sizes are 60mm (2-3/8 inch) for residential doors and 70mm (2-3/4 inch) for commercial doors. Our LD-057 is available in 50mm, 60mm, 70mm, and 80mm to cover all standard preparations.
Is the 3-hook configuration suitable for security doors?
Yes, the 3-hook multi-point configuration is specifically designed for high-security applications. Three independent hook bolts engage the door frame simultaneously, providing superior resistance against forced entry. This configuration is recommended for security doors, apartment entrance doors, and commercial premises.
Can this mortise lock body be used with different handle and knob styles?
Yes, the LD-057 mortise lock body is designed with standard spindle and keyway interfaces, making it compatible with a wide range of lever handles, knob sets, and pull handles. The universal spindle size allows mixing and matching with various handle styles from our product range.
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