In public buildings such as offices, hotels, hospitals, schools, and public facilities, door handles are among the most frequently used architectural hardware components. Subjected to constant operation, frequent contact, and demanding environmental conditions, door handle selection is no longer pur
In commercial and public buildings, well-tested and reliable locks are essential for safe passage and long-term operation. As a professional manufacturer of European standard fire door hardware, DIROCK narrow mortise locks are designed specifically for aluminum and narrow stile doors.
Our compact mortise locks feature a slim body and a reversible latch for easy installation. Manufactured in compliance with EN 12209 and DIN 18251 standards, the locks maintain stable performance and reliable operation even under high-frequency daily use.
Multiple models are available, including standard latch and roller latch versions, with center distances of 92mm and 85mm, and backsets of 30, 35, and 40mm. They flexibly adapt to various door profiles, meet customized project requirements, and are compatible with standard euro profile cylinders and complementary door hardware.
Key features of DIROCK narrow backset mortise lock
• Narrow design: Slim lock body perfectly fits narrow stile door structures.
• Compliant safety: Designed to EN 12209 and DIN 18251 standards, ensuring reliable performance in commercial scenarios.
• Flexible installation: Reversible latch for left or right-hand doors, available with multiple backsets (30/35/40mm) to suit different door systems.
• Robust materials: Core components made of 304 stainless steel and Zamak 5 (ZnNi plating) for long service life.
For further inquiries, please contact us: biz@dirock.com
Frequently asked questions
Q1. Can these locks adapt to different backset requirements?
Yes. DIROCK narrow mortise door locks offer multiple backset options (30mm, 35mm, 40mm) and work with standard euro profile cylinders. They flexibly fit most aluminium narrow stile door profiles and satisfy dimensional requirements of various projects.
Q2. What functional versions are available?
There are two narrow stile mortise locks: standard latch and roller latch. The standard version is cost-effective, durable and widely applicable. The roller latch version ensures smoother and quieter door operation, ideal for hotels, offices and other noise-sensitive areas.
Q3. What application scenarios are these locks suitable for?
These locks are suitable for Category of Use: Grade 2 (medium traffic areas where some misuse may occur), such as offices, street - front retail shops, small stores, and other commercial and public buildings.
