NBNP 301 Silver Cylinder Rim Lock, 60mm Backset

301 Silver Rim Lock

The NBNP 301 Silver Lock provides a standard security solution for inward-opening timber and metal doors in residential or commercial settings. This surface-mounted night latch utilizes a 60mm backset and a brass cylinder mechanism to manage access control effectively. It functions as a primary latch for utility rooms or a secondary security layer for main entry points.

Built for the Job

Carpenters and facility managers specify this hardware for its straightforward installation and reliable latching action. The unit mounts directly to the door face, which minimizes the need for deep morticing and preserves the structural integrity of the door stile. It is frequently used in multi-tenant buildings and office partitions where rapid installation is required. The silver finish offers a neutral, industrial appearance that resists visible wear in high-traffic areas.

• Secondary security for residential timber entrance doors.

• Access control for storage closets and maintenance rooms.

• Replacement hardware for existing 60mm backset rim latches.

Product Highlights

Corrosion-Resistant Housing

The lock body consists of a high-density alloy finished with a durable silver coating to prevent oxidation.

Integrated Snib Function

• Allows the latch to be held in the retracted position for free entry.
• Enables deadlocking of the latch bolt from the inside for increased privacy.

Technical Specifications

What’s Included

• 1 x Rim Lock Body and Strike Plate

• 1 x Brass External Cylinder

• 3 x Standard Cut Keys

• Fixing Screws and Cylinder Rose

On-Site & Workshop Notes

• Use a 32mm hole saw to create the aperture for the external cylinder to ensure a precise fit.

• The cylinder tailpiece may require trimming with a hacksaw depending on the specific door thickness.

• Maintain a 2mm to 3mm gap between the lock body and the strike plate for optimal latch engagement.

• Apply graphite powder to the keyway annually to maintain smooth internal pin movement.