Dormakaba NL550 Nightlatch – Less Cylinder – Stainless Steel

The Dormakaba NL550 is a high-performance nightlatch designed for commercial and industrial applications, including utility and service cupboards. Featuring a durable stainless steel construction and a fire rating of up to 2 hours, this lock offers both safety and reliability.

Product Features:
• Fire rated up to 2 hours (AS 1905.1-2005 compliant)
• Supplied without cylinder – compatible with most restricted keying systems
• Heavy-duty 12mm stainless steel latch bolt, lock case, and striker plates
• Includes striker plates for standard open-in and open-out door configurations
• Easy field-reversible handing
• Suits door thickness 35–46 mm
• 60 mm backset
• Brushed stainless steel finish with welded lock case joints
• Supplied boxed – no cylinder included

Specifications:
Brand: Dormakaba
Model: NL550SSS
Backset: 60 mm
Finish: Brushed Stainless Steel
Door Thickness: 35–46 mm
Dimensions: 95 x 68 x 22 mm
Fire Rated: Yes (up to 2 hours)
Assembly: Supplied without cylinder

Ideal for retrofit or new installations where high-quality, fire-rated security is essential.