---
product_id: 310983438
title: "Int Ext BS1 ETN Thumbturn Door Cylinder, Satin Nickel, Internal 35mm External 35mm (70mm Total)"
brand: "sterling"
price: "€ 42.59"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/310983438-int-ext-bs1-etn-thumbturn-door-cylinder-satin-nickel-internal
store_origin: GR
region: Greece
---

# TS007 1* Kitemark certified Fits timber, UPVC, composite & aluminium doors Anti-pick, drill & bump protection Int Ext BS1 ETN Thumbturn Door Cylinder, Satin Nickel, Internal 35mm External 35mm (70mm Total)

**Brand:** sterling
**Price:** € 42.59
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in safety, unlock your peace of mind.

## Quick Answers

- **What is this?** Int Ext BS1 ETN Thumbturn Door Cylinder, Satin Nickel, Internal 35mm External 35mm (70mm Total) by sterling
- **How much does it cost?** € 42.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/310983438-int-ext-bs1-etn-thumbturn-door-cylinder-satin-nickel-internal)

## Best For

- sterling enthusiasts

## Why This Product

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

## Key Features

- • **Advanced Anti-Theft Tech:** Multi-layered defense against picking, drilling, snapping & bumping
- • **Police-Approved Security:** Secured By Design endorsed for ultimate peace of mind
- • **Complete Installation Kit:** Includes lock cylinder, 3 keys, and fitting screw for hassle-free setup
- • **Sleek Satin Nickel Finish:** Modern, stylish look that complements any door aesthetic
- • **Universal Door Compatibility:** Seamlessly fits a wide range of door materials and profiles

## Overview

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.

## Description

Sterling Int Ext BS1 ETN Thumbturn Door Cylinder, Satin Nickel, Internal 35mm External 35mm (70mm Total)

## Features

- Secured By Design Approved Product - The Official UK Police Security Initiative. Recommended By The Police & Insurance Companies.
- TS007 1* Kitemark - Tested To The Very Highest Standards By BSi - British Standards Institution
- Anti-Pick, Anti-Screw, Anti-Pull, Anti-Bump and Anti-Drill components designed to resist to known attack methods on door lock cylinders
- Anti-Snap - sacrificial section leaves cylinder intact stopping thieves entering the property
- Suitable for use with a wide range of doors including timber, composite, UPVC, aluminium or patio doors with a Euro profile

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** Sterling
- **Special features:** Key Unlock
- **Lock type:** Key Lock
- **Item dimensions L x W x H:** 7 x 1.5 x 2 centimeters
- **Material:** Aluminum

## Images

![Int Ext BS1 ETN Thumbturn Door Cylinder, Satin Nickel, Internal 35mm External 35mm (70mm Total) - Image 1](https://m.media-amazon.com/images/I/71ThDmr8TWL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Sterling Int Ext BS1 ETN Thumbturn Door Cylinder, Satin Nickel, Internal 35mm External 35mm (70mm Total)
- Sterling TS007 BS1 1 Star Police Approved Secured by Design Euro Door Cylinder, Satin Nickel, 35mm x 35mm (70mm Total)

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**Shop now:** [https://www.desertcart.gr/products/310983438-int-ext-bs1-etn-thumbturn-door-cylinder-satin-nickel-internal](https://www.desertcart.gr/products/310983438-int-ext-bs1-etn-thumbturn-door-cylinder-satin-nickel-internal)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-02*