ERA Double Locking Nightlatch — Narrow, 40mm Backset, Electro Brass

The ERA Double Locking Nightlatch Narrow (DF183A) provides additional security to replace most existing front door locks. Automatic deadlocking prevents the bolt from being retracted by a credit card — a critical security advantage that makes forced entry significantly harder.

The ergonomic internal locking handle can be deadlocked by an anti-clockwise turn of the key from the inside, offering additional protection against forced entry through glass panelled doors. A simple snib button holds the latch withdrawn for easy access without operating the handle.

Face-fitted and non-handed, it suits both left and right-hand inward opening timber doors. The striker features a 3-hole fixing for added strength. The rim cylinder is supplied with 3 cut keys and can be keyed to pass or master keyed.

Key Features & Benefits

• Automatic deadlocking bolt — cannot be retracted by credit card
• Deadlockable from inside via key — ideal for glass panelled doors
• 40mm backset — replaces most existing front door locks
• Electro brass finish with matching rim cylinder
• Snib button holds latch withdrawn for easy access
• Non-handed — suits left and right-hand doors
• 3-hole striker fixing for additional strength
• 3 cut keys supplied; keyed to pass or master keyed available
• BS EN 1670 Grade 3 corrosion resistance (96 hours)

Technical Specification

• SKU: DF183A
• Type: Double Locking Nightlatch, Narrow
• Backset: 40mm
• Case size: 100 x 86 x 58.5mm
• Finish: Electro Brass
• Handed: Non-handed (left & right)
• Door type: Inward opening timber doors

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