---
product_id: 56416029
title: "ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold"
brand: "era"
price: "€ 202.95"
currency: EUR
in_stock: true
reviews_count: 8
category: "Era"
url: https://www.desertcart.com.cy/products/56416029-era-1830-31-40mm-high-security-bs-nightlatch-brass-effect
store_origin: CY
region: Cyprus
---

# BS3621 Certified Security Auto Deadlocking Bolt 6-Pin Anti-Drill Cylinder ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold

**Brand:** era
**Price:** € 202.95
**Availability:** ✅ In Stock

## Summary

> 🔒 Elevate your door security game — because your peace of mind deserves the best!

## Quick Answers

- **What is this?** ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold by era
- **How much does it cost?** € 202.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/56416029-era-1830-31-40mm-high-security-bs-nightlatch-brass-effect)

## Best For

- era enthusiasts

## Why This Product

- Trusted era brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Auto Deadlock:** Latch bolt auto deadlocks on door close, blocking credit card and forced entry hacks.
- • **Dual Locking Internal Handle:** Lock from inside to prevent unauthorized unlocking even if glass is broken.
- • **Next-Level Anti-Theft Defense:** 6-pin cylinder with armored pull resists drill and lockpick attacks effortlessly.
- • **Universal Fit & User-Friendly:** Perfect for timber or composite doors, left or right-handed, with a handy hold-open snib.
- • **Insurance-Approved Peace of Mind:** Certified to BS3621, trusted by insurers and police for ultimate security.

## Overview

The ERA 1830-31 40mm High Security BS Nightlatch combines BS3621 certification with advanced anti-drill and anti-pick features, including a 6-pin cylinder and an automatic deadlocking bolt. Designed for timber or composite doors, it offers dual internal locking and a hold-open function, delivering professional-grade security trusted by insurers and police alike.

## Description

ERA BS 3621 High Security Nightlatches are recommended for external timber or composite doors. The BS 3621 standard is recognised as giving the high protection for highome and commercial use, approved by Insurance companies and the Police. Integral Cylinder housing/pull protects the cylinder from drill attacks. The cylinder has over 30,000 key variations and is constructed with anti Lockpick pins. The Nightlatch bolt has a 20mm throw for greater security and strength. The bolt automatically deadlocks when the door is shut to prevent credit card attacks. The generously sized internal, easy to use handle, can be locked which prevents the lock being operated when a winow pane is broken. The lock is opened from the outside via a key and by a handle on the inside. Lock can be held open by using the snib button on the internal side of the door to prevent accidentaly being locked out. Suitable for left or right handed doors. ERA Locks have been providing high quality home and business security products for over 150 years. ERA is one of the UK's most recognised Lock brands providing you with the peace of mind that your property and possesions are locked up safe and sound. ERA Locks are approved by Insurance companies. The extensive range of products includes, Nightlatches, Mortice Locks, Window Locks, Cylinders, UPVC and Composite door locks, Digital Door Locks & Wordlock Padlocks.

Review: High quality lock - This lock is extremely sturdy, but fiddly to install. I had to purchase a seperate 32mm drill bit for the main hole in the door (you need other drill bits as well). The main bracket that sites between the front and rear sections of the door needs to be cut between 6 and 7 mm long - this is very fiddly. Fortunately I had bolt cutters and a metal file, so I was able to get the length exactly correct, but it took some time. It was also very fiddly to fit the internal lock mechanism to align with the bracket. I ended up stuffing the hole with some kitchen roll to have the bracket sit at the correct height and angle. This model has the dual locking function, so you can lock the door on the way out and if someone smashes a sidelight window they cannot unlock the door... Very high security. It came with 3 keys. I asked on the Screwfix site (UK), what oil should be used to lubricate the lock and they recommended 3 in 1 oil. The lock closes with an awful thud, I wonder could ERA not improve this to be less of a racket. The lock has a "hold open" function using a small black button on the lock body. I had a laptop stolen years ago as someone was able to use a credit card on my lock - you cannot do that with this lock. The lock is fantastic value for money.
Review: Good product and no issues for me - Felt obliged to write a review given all the mixed reviews on here. I can only assume that the bad reviews were due to people trying to install this product themselves. I had a reputable local locksmith come out to install it professionally and he commented on how good this lock is and how it should be installed by a professional. Installation cost more than the lock, but the lock is pretty well priced. The product looks great, is very sturdy and I’ve had no issues whatsoever. The door feels far more secure now. I would highly recommend it.

## Features

- Certified to BS3621 - Approved by all insurance companies
- Latch bolt automatically deadlocks when door is shut - prevents credit card attack.
- Locking internal handle - Provides additional security.
- 6 Pin cylinder with armoured pull - prevents drill attack
- Ideal for solid or glass panelled, timber or composite doors.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0018RH57U |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 58,748 in DIY & Tools ( See Top 100 in DIY & Tools ) 88 in Lock Cylinders 1,167 in Home Security Systems |
| Colour | Gold |
| Customer Reviews | 4.2 4.2 out of 5 stars (97) |
| Date First Available | 2 Dec. 2009 |
| Finish | Satin |
| Included Components | ERA 40mm High Security BS Nightlatch - Brass Effect Body |
| Item Package Quantity | 1 |
| Item Weight | 1.51 kg |
| Item model number | 1830-31 |
| Manufacturer | ERA |
| Material | Brass |
| Number of Pieces | 1 |
| Package Dimensions | 13.6 x 10.1 x 9.1 cm; 1.51 kg |
| Part Number | 1830-31 |
| Shape | Rectangular |
| Special Features | Easy to Install, Key Unlock |
| Style | Modern |

## Product Details

- **Brand:** ERA
- **Lock type:** Automatic
- **Material:** Brass
- **Recommended uses for product:** Security
- **Special feature:** Easy to Install, Key Unlock

## Images

![ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold - Image 1](https://m.media-amazon.com/images/I/21N0wd2QeAL.jpg)
![ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold - Image 2](https://m.media-amazon.com/images/I/31MTvqvHJTL.jpg)
![ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold - Image 3](https://m.media-amazon.com/images/I/4142Ch23nNL.jpg)
![ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold - Image 4](https://m.media-amazon.com/images/I/41cqoc0uarL.jpg)
![ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold - Image 5](https://m.media-amazon.com/images/I/41kuGZuQktL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality lock
*by T***R on 5 June 2022*

This lock is extremely sturdy, but fiddly to install. I had to purchase a seperate 32mm drill bit for the main hole in the door (you need other drill bits as well). The main bracket that sites between the front and rear sections of the door needs to be cut between 6 and 7 mm long - this is very fiddly. Fortunately I had bolt cutters and a metal file, so I was able to get the length exactly correct, but it took some time. It was also very fiddly to fit the internal lock mechanism to align with the bracket. I ended up stuffing the hole with some kitchen roll to have the bracket sit at the correct height and angle. This model has the dual locking function, so you can lock the door on the way out and if someone smashes a sidelight window they cannot unlock the door... Very high security. It came with 3 keys. I asked on the Screwfix site (UK), what oil should be used to lubricate the lock and they recommended 3 in 1 oil. The lock closes with an awful thud, I wonder could ERA not improve this to be less of a racket. The lock has a "hold open" function using a small black button on the lock body. I had a laptop stolen years ago as someone was able to use a credit card on my lock - you cannot do that with this lock. The lock is fantastic value for money.

### ⭐⭐⭐⭐⭐ Good product and no issues for me
*by R***. on 28 October 2019*

Felt obliged to write a review given all the mixed reviews on here. I can only assume that the bad reviews were due to people trying to install this product themselves. I had a reputable local locksmith come out to install it professionally and he commented on how good this lock is and how it should be installed by a professional. Installation cost more than the lock, but the lock is pretty well priced. The product looks great, is very sturdy and I’ve had no issues whatsoever. The door feels far more secure now. I would highly recommend it.

### ⭐⭐⭐⭐ An excellent lock but needs patience and skill to fit
*by R***. on 27 May 2018*

A very good lock and it’s appearance will put opportunistic thieves off and professionals won’t even try because they know it is drill proof, but if you have limited tools and skills it may not be for you, the tolerances are only +- a couple or so mm, you have to cut the actuating tongue to just the right length and it is then very fiddly to get the tongue into the lock body and positioning the holes for the cylinder have to be spot on in order to get the backplate correctly positioned, if you do it yourself only put one securing screw in the backplate until you are sure you can mount the lock body and when you cut the actuating tongue do it by gripping it with a set of grips and then cut it with a mini hacksaw up against the grip jaws. You might want to fix the hasp with 12g screws to make it more resistant to being jemmy forced

## Frequently Bought Together

- ERA 1830-31 40mm High Security BS Nightlatch - Brass Effect Body, Gold
- ERA Fortress 261-31A, 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Brass Effect

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-11*