ERA British Standard Nightlatch — Narrow, 40mm Backset, Satin Chrome

The ERA British Standard Nightlatch Narrow (DF1830S) is a high-security door lock with a classic and robust design. Available in a 40mm backset, it is an ideal product to replace most existing front door locks and is particularly suited to panelled and glass panelled doors.

The ergonomic internal locking handle can be deadlocked by an anti-clockwise turn of the key from the inside, offering additional security against forced entry. The main bolt is automatically deadlocked into the striker when the door is closed, preventing it from being retracted by a credit card. Designed with a 20mm bolt throw for even greater security and strength.

A simple snib button enables the latch to be held in the withdrawn position, allowing the door to be accessible without operating the handle.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 lock conforms to BS 3621:2007 (BS EN 12209) and meets the requirements of insurance companies and the Police. The external cylinder features a high-security integral cylinder pull to protect against drilling, with over 30,000 cut key variations. Supplied with 3 cut keys; can be keyed to pass or master keyed. All finishes meet BS EN 1670 Grade 3 (96 hours) corrosion resistance.

Key Features & Benefits

• BS 3621:2007 certified — insurance and Police approved
• Automatic deadlocking bolt — cannot be retracted by credit card
• 20mm bolt throw for greater security and strength
• Deadlockable from inside via key — ideal for glass panelled doors
• High-security integral cylinder pull — drill resistant
• Over 30,000 key variations
• 40mm narrow backset — replaces most existing front door locks
• Satin chrome body and 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• Snib button holds latch withdrawn for easy access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: DF1830S
• Type: British Standard Nightlatch, Narrow
• Backset: 40mm
• Case dimensions: 100 x 86 x 70mm
• Bolt throw: 20mm
• Finish: Satin Chrome body / Satin Chrome cylinder
• Standard: BS 3621:2007 (BS EN 12209)
• Handed: Non-handed (left & right)
• Door type: Inward opening timber doors

Browse Related Products

• Door Locks
• Nightlatches
• ERA Locks