---
product_id: 56415979
title: "P-85-DMG-SC-40- Deadlocking Nightlatch - 40mm - Chrome Finish - High Security with automatic deadlock"
brand: "yale"
price: "E£ 7704"
currency: EGP
in_stock: true
url: https://www.desertcart.com.eg/products/56415979-p-85-dmg-sc-40-deadlocking-nightlatch-40mm-chrome-finish
store_origin: EG
region: Egypt
---

# 40mm high-security deadlock 2 standard Yale keys included Bump-resistant Yale rim cylinder P-85-DMG-SC-40- Deadlocking Nightlatch - 40mm - Chrome Finish - High Security with automatic deadlock

**Brand:** yale
**Price:** E£ 7704
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in security, unlock peace of mind.

## Quick Answers

- **What is this?** P-85-DMG-SC-40- Deadlocking Nightlatch - 40mm - Chrome Finish - High Security with automatic deadlock by yale
- **How much does it cost?** E£ 7704 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/56415979-p-85-dmg-sc-40-deadlocking-nightlatch-40mm-chrome-finish)

## Best For

- yale enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Chrome Finish:** Modern satin chrome design that complements any professional or contemporary property aesthetic.
- • **Effortless Control Inside:** Convenient lever handle and internal snib button let you deadlock or hold back the latch with ease.
- • **Trusted Yale Craftsmanship:** Equipped with a bump-resistant rim cylinder and backed by a 2-year guarantee for peace of mind.
- • **Unmatched Security, Always:** Automatic deadlock engages on door close, securing your space without a second thought.
- • **Ready to Install, Ready to Secure:** Comes with a complete fixing pack and two keys—security that’s plug-and-play.

## Overview

The Yale P-85-DMG-SC-40 Deadlocking Nightlatch offers a robust 40mm deadlock with automatic engagement, bump-resistant rim cylinder, and dual-key operation. Designed for high security and convenience, it features an internal snib button and lever handle for flexible locking options. Finished in sleek satin chrome, it includes two Yale keys, a fixing pack, and a 2-year guarantee, making it the ideal choice for securing unattended properties with style and confidence.

## Description

P-85-DMG-SC-40- Deadlocking Nightlatch - 40mm - Chrome Finish - High Security with automatic deadlock

## Features

- Deadlock operated by key from outside, ideal if property is left unattended for long periods
- Convenient lever handle to operate lock inside the property
- Internal snib button is used to engage the deadlock or temporarily hold back the latch bolt
- Includes Yale rim cylinder operated by key from the outside with standard security components
- Supplied with two standard Yale keys and fixing pack
- 2 years guarantee

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Yale |
| Part Number | P-85-DMG-SC-40 |
| Product Dimensions | 19.3 x 8 x 21.01 cm; 689 g |
| Item model number | P-85-SC-SC-40 |
| Size | 40 mm |
| Colour | Chrome Finish |
| Style | Single |
| Finish | Satin |
| Material | Chrome |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Inside handle can be deadlocked by a reverse turn of the key in the outside cylinder after closing the door, 2 year guarantee, Bump resistant cylinders, 2 keys included Deadlocked by the snib button internally, making the lock inoperable by key or handle, Snib to deadlock or hold back the latch |
| Included Components | Deadlocking Nightlatch |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 689 g |

## Product Details

- **Brand:** Yale
- **Special feature:** Inside handle can be deadlocked by a reverse turn of the key in the outside cylinder after closing the door, 2 year guarantee, Bump resistant cylinders, 2 keys included Deadlocked by the snib button internally, making the lock inoperable by key or handle, Snib to deadlock or hold back the latch
- **Lock type:** Key Lock
- **Item dimensions L x W x H:** 19.3 x 8 x 21 centimetres
- **Material:** Chrome

## Images

![P-85-DMG-SC-40- Deadlocking Nightlatch - 40mm - Chrome Finish - High Security with automatic deadlock - Image 1](https://m.media-amazon.com/images/I/71JCkPiW2VL.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

## Questions & Answers

**Q: does it fit a 45mm thick door**
A: Yes

**Q: "If .. locked .. outside, it cannot be operated .. inside" - so can someone inside be locked in, regardless?! Or only if they don't also have a key..?**
A: Can't be locked in there is a catch and latch on the inside. You can be locked out if you don't have a key.

**Q: is this suitable for an outward opening door?**
A: Hi, the Yale lock will work on both outward and inward opening and closing doors. The one thing to remember is to ensure the door catch is on the correct way? 

There is a curve on the facing edge of the door latch. Make sure that curve is on the correct way. The lock has to be dismantled to do this. Two screws have to be removed the mechanism removed and put in in the alternative position. The flat side of the latch has to be facing the front of the door. The key goes in the front facing lock.

**Q: A review mentions 'No screws included' to fit the lock - Really?**
A: Mine had screws supplied

## Frequently Bought Together

- Yale P-85-DMG-SC-40 Deadlocking Nightlatch, High Security, with Automatic Deadlock, Chrome Finish, 40 mm Backset
- Prime-Line GD 52119 Diecast Painted Aluminum, Center Mount Deadbolt Lock with Keyed Cylinder (Single Pack)

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**Shop now:** [https://www.desertcart.com.eg/products/56415979-p-85-dmg-sc-40-deadlocking-nightlatch-40mm-chrome-finish](https://www.desertcart.com.eg/products/56415979-p-85-dmg-sc-40-deadlocking-nightlatch-40mm-chrome-finish)

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-01-23*