---
product_id: 47934634
title: "ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect, Grey"
brand: "era"
price: "€ 78.69"
currency: EUR
in_stock: true
reviews_count: 8
category: "Era"
url: https://www.desertcart.hr/products/47934634-era-fortress-bs-3621-2-5-inch-64mm-5-lever
store_origin: HR
region: Croatia
---

# 5 Lever Maximum Security 20mm Laminated Hardened Steel Deadbolt BS3621 Certified & Insurance Approved ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect, Grey

**Brand:** era
**Price:** € 78.69
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind with ERA Fortress — where security meets style.

## Quick Answers

- **What is this?** ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect, Grey by era
- **How much does it cost?** € 78.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/47934634-era-fortress-bs-3621-2-5-inch-64mm-5-lever)

## 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

- • **Sleek Chrome Finish:** Modern, durable chrome effect that complements any door style while resisting corrosion.
- • **BS3621 Certification:** Officially approved standard ensuring maximum home and commercial security.
- • **Effortless Installation:** Fits most timber and composite doors without handle requirements or major modifications.
- • **20mm Hardened Steel Deadbolt:** Anti-saw, anti-drill deadbolt engineered to withstand forced entry.
- • **Unmatched Security with 5 Levers:** Experience top-tier protection that insurance companies trust.

## Overview

The ERA Fortress BS 3621 Mortice Deadlock delivers premium security with a 5-lever mechanism, a 20mm laminated hardened steel deadbolt, and hardened steel case plates that resist saw, drill, and pick attacks. Certified to the rigorous BS3621 standard and approved by insurance companies, this lock is ideal for external timber and composite doors. Its chrome effect finish offers a sleek, modern look without compromising durability. Designed for easy installation without handles, it upgrades your door’s security to professional-grade protection trusted for over 150 years.

## Description

ERA Fortress British Standard 3621 5 Lever Maximum Security Deadlocks are recommended for External timber and composite doors. The BS 3621 standard is recognised as giving the maximum protection for home and commercial use, approved by Insurance companies and the Police. The laminated steel Deadbolt helps to prevent hacksaw attacks. The Deadbolt has a 20mm throw for greater security. Hardened steel plates on the casing prevent drill attacks. The 5 Lever mechanism is designed to prevent lock picking. ERA Fortress locks are ideal for use in new doors or upgrading security from 2 and 3 lever door locks. Deadlocks do not require door handles. 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: A solid must have 5 lever mortice lock - Good lock for the money. Replaced an old lock with this new one. The lock fitted in the door without any modification to the wood. The other metal part the lock turns into was bigger than the old one so the door frame needed chisling out a little bigger. Basically just a few mm along the top and down one side so the plate would sit in flush as it is slightly taller and wider than the old plate it replaced. It came with 2 keyhole covers and some screws. The big screws I replaced with some bigger ones with stronger heads as the supplied screws rounded out on me as I didn't have a drill. I used bigger and longer screws for better strength. You really should have a mortice lock on a door if you only have a Yale type lock then I suggest you should get a mortice lock if you don't have one. Yale locks can be broken into far too easily in a few ways. A mortice lock is a lot more secure and stronger. For the money it's a really solid lock. You'd have to break the whole door down to get in now. I would also advise to have half decent chisel and a hammer so you can do a neat job of fitting it. It's not hard to do. Easy with a sharp chisel say about a 1" width will do just so you can fit the side plate on. If it's the same size as the old plate then you can do a straight swap or just leave the old plate fitted. The lock fitted solidly and my door is very solid and secure now. If fitting from scratch you'll obviously need all the proper tools or a lock smith or carpenter to do it for you. It arrived quickly in only a few days time. I ordered from Richards Builders Merchants based in the UK here on desertcart UK. I choose these as it was the best price and I did not use Prime. The item was new, boxed, complete and it came supplied with 2 keys.
Review: A beast of a lock for high security applications - These are very substantial locks, with a good key action and they're very easy to install. I used a 22mm wood drill (Bosch Pro range, as for sale on desertcart) and got the frame and door apertures cut quickly. The lock itself comes with a front cover plate so you don't actually see the red body paint when installed, just a bright chrome plate which matches the one you fit to the door frame. A very smooth key-turn action, and the bolt has a LONG travel that means it goes into the door frame a long way. The lock comes with a keyhole plate for the inside of the door, and a covered key plate for the outer door face to keep the rain out. The lock has an extra quarter-turn at each end to retain the keys in the lock in either direction. The screws supplied for the lock and frame plate are also substantial. Nice and long, with a large diameter but they didn't split the wood in the frame or door when I installed them. They seem to go in really tight, adding to the impression that you've purchased a very high security lock. It's got to be 5 stars for how substantial this unit is, how easy it is to fit, how smooth the lock action is and the overall impression of added security you're getting.

## Features

- Certified to BS3621 - Approved by all insurance companies
- Laminated hardended steel, 20mm, anti saw deadbolt.
- Hardened steel case plates - Resists drill attacks.
- Pick resistant mechanism
- No handles required

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0074JFWQM |
| Best Sellers Rank | 38,770 in DIY & Tools ( See Top 100 in DIY & Tools ) 36 in Mortise Locks 63 in Lock Cylinders 758 in Home Security Systems |
| Brand | ERA |
| Colour | Grey |
| Control Method | Touch |
| Customer Reviews | 4.4 out of 5 stars 298 Reviews |
| Finish | Laminated,Chrome |
| Global Trade Identification Number | 00798256162794, 05011988002073, 05054040365068 |
| Included Components | ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect |
| Item Dimensions | 19.4 x 11.4 x 3.4 centimetres |
| Item dimensions L x W x H | 19.4 x 11.4 x 3.4 centimetres |
| Lock Type | Key Lock |
| Lock type | Key Lock |
| Manufacturer | ERA |
| Manufacturer Warranty Description | N/a. |
| Material | Chrome |
| Model Number | 261-61 |
| Recommended Uses For Product | Security |
| Recommended uses for product | Security |
| Shape | Rectangular |
| Special Features | Key Unlock |
| Special feature | Key Unlock |
| Style | Orignal Packaging |
| UPC | 798256162794 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** ERA
- **Item dimensions L x W x H:** 19.4 x 11.4 x 3.4 centimetres
- **Lock type:** Key Lock
- **Material:** Chrome
- **Special feature:** Key Unlock

## Images

![ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect, Grey - Image 1](https://m.media-amazon.com/images/I/61HSZbkU2eL.jpg)

## Questions & Answers

**Q: Can these be keyed alike for multi lock purchase**
A: Amazon is a fulfilment house -- if you want matching key sets you will have to go to a specialist locksmith or lock supplier and pay the premium prices.

**Q: What is the minimum door thickness this can be installed in please?**
A: It's for front door

**Q: is this lock suitable for a timber door?**
A: I fitted this lock on a timber fire door, works perfectly, easy to fit

**Q: Is  this product Kitemarked to BS 3621**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ A solid must have 5 lever mortice lock
*by M***K on 20 September 2018*

Good lock for the money. Replaced an old lock with this new one. The lock fitted in the door without any modification to the wood. The other metal part the lock turns into was bigger than the old one so the door frame needed chisling out a little bigger. Basically just a few mm along the top and down one side so the plate would sit in flush as it is slightly taller and wider than the old plate it replaced. It came with 2 keyhole covers and some screws. The big screws I replaced with some bigger ones with stronger heads as the supplied screws rounded out on me as I didn't have a drill. I used bigger and longer screws for better strength. You really should have a mortice lock on a door if you only have a Yale type lock then I suggest you should get a mortice lock if you don't have one. Yale locks can be broken into far too easily in a few ways. A mortice lock is a lot more secure and stronger. For the money it's a really solid lock. You'd have to break the whole door down to get in now. I would also advise to have half decent chisel and a hammer so you can do a neat job of fitting it. It's not hard to do. Easy with a sharp chisel say about a 1" width will do just so you can fit the side plate on. If it's the same size as the old plate then you can do a straight swap or just leave the old plate fitted. The lock fitted solidly and my door is very solid and secure now. If fitting from scratch you'll obviously need all the proper tools or a lock smith or carpenter to do it for you. It arrived quickly in only a few days time. I ordered from Richards Builders Merchants based in the UK here on Amazon UK. I choose these as it was the best price and I did not use Prime. The item was new, boxed, complete and it came supplied with 2 keys.

### ⭐⭐⭐⭐⭐ A beast of a lock for high security applications
*by J***N on 20 January 2024*

These are very substantial locks, with a good key action and they're very easy to install. I used a 22mm wood drill (Bosch Pro range, as for sale on Amazon) and got the frame and door apertures cut quickly. The lock itself comes with a front cover plate so you don't actually see the red body paint when installed, just a bright chrome plate which matches the one you fit to the door frame. A very smooth key-turn action, and the bolt has a LONG travel that means it goes into the door frame a long way. The lock comes with a keyhole plate for the inside of the door, and a covered key plate for the outer door face to keep the rain out. The lock has an extra quarter-turn at each end to retain the keys in the lock in either direction. The screws supplied for the lock and frame plate are also substantial. Nice and long, with a large diameter but they didn't split the wood in the frame or door when I installed them. They seem to go in really tight, adding to the impression that you've purchased a very high security lock. It's got to be 5 stars for how substantial this unit is, how easy it is to fit, how smooth the lock action is and the overall impression of added security you're getting.

### ⭐⭐⭐⭐⭐ Good choice.
*by B***O on 15 September 2024*

Bought to replace exactly same item which sadly conked out after 8 years. I can't complain, as my old lock was used constantly 3\4+ times every single day. Occasional use will obviously extend lock life cycle. To change over new lock from the old was a 2 minute job. Easy. Only negative is 2 keys. I would have preferred 3 but can get one cut relatively cheap locally. The price for this item was the best I could find anywhere here on Amazon...Great deal.

## Frequently Bought Together

- ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect, Grey
- ERA 1930-35-1 60mm Maximum Security BS Nightlatch with Satin Chrome Body , Grey

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**Shop now:** [https://www.desertcart.hr/products/47934634-era-fortress-bs-3621-2-5-inch-64mm-5-lever](https://www.desertcart.hr/products/47934634-era-fortress-bs-3621-2-5-inch-64mm-5-lever)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-01*