




🔒 Lock in security, unlock peace of mind.
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.







| 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 |
T**D
works
great and works
R**D
Easy to fit as a replacement
Easy to fit. Replaced old Yale latch
S**S
Very good.
Easy to fit for me as it was replacing an existing Yale lock. Only quibble was I kept the screws going into the door frame and reused them as they were twice the length.
M**R
Sturdy lock
Was a replacement for a 20 year old take that was starting to show signs of age. Fitted exactly in the old bracket, all done in 10 minutes and mechanism much better. Looks good too
S**L
Nice lock
Easy to fit and nice working action
I**H
Easy to install
Easy to install and set the deadlock position. Used the original barrel. if fitted well as a direct replacement
M**H
Good quality, easy to install.
Only featurebi don't like is the ability to deadlock it from the outside with the key.
M**L
Hmmm
Some features of this lock are not described properly in the ad. Yes, you can enable the deadlock from outside, but it doesn’t specify that people inside won't be able to open it at all then, no matter what or how. Not sure if it's a feature for everyone.
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