---
product_id: 285648046
title: "Int Ext BS1 ETN3545 Thumbturn Door Cylinder, Satin Nickel, Internal 40mm External 40mm (80mm Total)"
brand: "sterling"
price: "₨876"
currency: SCR
in_stock: true
category: "Sterling"
url: https://www.desertcart.sc/products/285648046-int-ext-bs1-etn3545-thumbturn-door-cylinder-satin-nickel-internal
store_origin: SC
region: Seychelles
---

# Anti-pick Easy install Anti-snap Int Ext BS1 ETN3545 Thumbturn Door Cylinder, Satin Nickel, Internal 40mm External 40mm (80mm Total)

**Brand:** sterling
**Price:** ₨876
**Availability:** ✅ In Stock

## Summary

> 🔑 Lock in peace of mind with style!

## Quick Answers

- **What is this?** Int Ext BS1 ETN3545 Thumbturn Door Cylinder, Satin Nickel, Internal 40mm External 40mm (80mm Total) by sterling
- **How much does it cost?** ₨876 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/285648046-int-ext-bs1-etn3545-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

- • **✨ Sleek Finish:** Stylish satin nickel finish enhances any door aesthetic.
- • **🔒 Smart Design:** Sacrificial section prevents unauthorized access.
- • **🔧 Versatile Fit:** Compatible with timber, composite, UPVC, aluminum, and patio doors.
- • **🔐 Ultimate Security:** Secured by Design approved, trusted by police and insurers.
- • **🛡️ Unmatched Durability:** Anti-pick, anti-screw, anti-pull, anti-bump, and anti-drill components.

## Overview

The Sterling Int Ext BS1 ETN3545 Thumbturn Door Cylinder is a high-security locking solution, featuring a satin nickel finish and designed for both internal and external use. With a total length of 80mm, it meets the highest security standards, including anti-pick and anti-snap features, making it a reliable choice for various door types.

## Description

Buy Sterling Int Ext BS1 ETN3545 Thumbturn Door Cylinder, Satin Nickel, Internal 40mm External 40mm (80mm Total) online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- secured by design approved product - the official uk police security initiative. recommended by the police & insurance companies.
- ts007 1 x 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 ETN4040 |
| Item Weight | 310 g |
| Product Dimensions | 8 x 1.5 x 2 cm; 310 g |
| Item model number | 40mm Int 40mm Ext |
| Size | Internal 40mm External 40mm (80mm Total) |
| Color | Satin Nickel |
| Style | Internal 40mm External 40mm (80mm 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
- **Item dimensions L x W x H:** 8 x 1.5 x 2 centimeters
- **Lock type:** Key Lock
- **Material:** Aluminum
- **Special features:** Key Unlock

## Images

![Int Ext BS1 ETN3545 Thumbturn Door Cylinder, Satin Nickel, Internal 40mm External 40mm (80mm Total) - Image 1](https://m.media-amazon.com/images/I/71ThDmr8TWL.jpg)

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**Shop now:** [https://www.desertcart.sc/products/285648046-int-ext-bs1-etn3545-thumbturn-door-cylinder-satin-nickel-internal](https://www.desertcart.sc/products/285648046-int-ext-bs1-etn3545-thumbturn-door-cylinder-satin-nickel-internal)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-18*