





🔐 Lock in safety, unlock your peace of mind.
The Int Ext BS1 ETN Thumbturn Door Cylinder is a premium 70mm lock cylinder featuring a satin nickel finish and robust aluminum construction. Secured By Design approved and TS007 1* Kitemark certified, it offers advanced anti-pick, anti-drill, anti-bump, anti-snap, and anti-pull protection. Designed for versatile use with timber, composite, UPVC, and aluminium doors, it comes complete with 3 keys and fitting screw for easy installation.
| Manufacturer | Sterling |
| Part number | BS1 ETN3535 |
| Item Weight | 290 g |
| Product Dimensions | 7 x 1.5 x 2 cm; 290 g |
| Item model number | 35mm Int Ext (70mm Total) |
| Size | Internal 35mm External 35mm (70mm Total) |
| Color | Satin Nickel |
| Style | Internal 35mm External 35mm (70mm Total) |
| Finish | Satin Nickel |
| Material | Aluminum |
| Shape | Round |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Special Features | Key Unlock |
| Included components | Lock Cylinder, 3 Keys, Fitting Screw |
| Batteries Required? | No |
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