



๐ Lock in elite security and leave burglars locked out!
The Yale B-YS3-4040N is a premium 3 Star Euro Double Cylinder lock, engineered with hardened alloy steel and multi-layered defenses to meet the highest British Standard TS007:2014 and Police Secure by Design certification. Featuring anti-snap, anti-pick, anti-drill, and anti-bump technologies, it offers robust protection against all common forced entry methods. Supplied with 3 reversible dimple keys and a key code card, it enables quick, secure key replacements. Designed for easy installation on timber, composite, UPVC, aluminium, or patio doors, this nickel-finished 40:40 (80mm) cylinder is the ultimate upgrade for millennial professionals seeking effortless, high-end home security.






| Manufacturer | Yale |
| Part number | YS3-4040N |
| Item Weight | 254 g |
| Product Dimensions | 8 x 1.7 x 3.3 cm; 254 g |
| Item model number | B-YS3-4040N |
| Size | 40:40 (80mm) |
| Color | Nickel Finish |
| Style | Box |
| Finish | Nickel Plate |
| Material | Alloy Steel |
| Shape | Round |
| Item Package Quantity | 1 |
| Number Of Pieces | 10, 3 |
| Special Features | Key Unlock |
| Included components | Euro Cylinder x 1, Keys 3, Fitting Screw Instructions 1 |
| Batteries Included? | No |
| Batteries Required? | No |
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