# Door Lock Cylinder SYNOLOGY LOCK CYLINDER D6 40/40mm Nickel

**URL:** https://aio.lv/en/product--synology-78846--12118707
**Data updated:** 2026-03-20 17:58 (EET)
**Category:** Furniture Accessories
**Manufacturer:** SYNOLOGY
**Manufacturer code:** 78846
**EAN:** 4003318510212
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 18.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--synology-78846--12118707

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

SYNOLOGY LOCK CYLINDER D6 40/40mm in nickel is a replacement door lock cylinder with symmetric 40/40mm dimensions. Designed for standard cylindrical lock cases, it provides keyed entry control and compatibility with compatible door hardware. Suitable for residential and light commercial doors where a 40/40mm cylinder is required.

## Long description

SYNOLOGY LOCK CYLINDER D6 40/40mm Nickel is a replacement door lock cylinder with symmetric 40/40mm dimensions designed for standard cylindrical lock cases. The nickel finish offers a corrosion-resistant surface and neutral appearance suitable for a range of interior and exterior doors. This cylinder provides keyed entry control and is intended to fit into locks that accept a 40/40mm profile, delivering a straightforward mechanical solution for replacing worn or damaged cylinders.
Advantages
The SYNOLOGY D6 cylinder is manufactured to match common dimensional standards for easy replacement without modifying the existing lock case. Its symmetric 40/40mm length enables reversible installation and compatibility with both left- and right-handed doors. The nickel plating increases resistance to wear and environmental exposure while maintaining a low-profile look. The cylinder provides mechanical key control without electronic components, offering a simple, serviceable solution for conventional door hardware.
Suitable for
Residential front and interior doors that accept a 40/40mm cylinder
Light commercial doors such as offices or small retail premises
Replacement of worn or damaged standard profile cylinders
Applications requiring a symmetric, reversible cylinder for left or right handing
Key specifications
Cylinder type: standard euro/profile-like cylindrical lock cylinder
Dimensions: symmetric 40 mm / 40 mm (overall length split equally)
Finish: nickel-plated surface for corrosion resistance
Operation: mechanical keyed entry (no electronic components)
Compatibility: designed for standard cylindrical lock cases accepting 40/40 mm cylinders
How to use
To replace an existing cylinder, first remove the fixing screw from the lock case and withdraw the old cylinder following the lock manufacturer’s instructions. Insert the SYNOLOGY D6 40/40mm cylinder so that the cam aligns with the lock mechanism, then secure it with the fixing screw and test operation by turning the key from both sides. Ensure the cylinder sits flush with the door face and that the key turns smoothly without binding. If necessary, check strike plate alignment and door clearance to prevent interference.
Usage recommendations
Use the SYNOLOGY D6 cylinder in locks that specifically require a symmetric 40/40 mm unit. For external doors, verify that the nickel finish and mechanical security level meet local requirements and consider pairing the cylinder with a compatible high-security escutcheon or reinforced lock case if additional protection is needed.

## FAQ

### How much does the SYNOLOGY LOCK CYLINDER D6 40/40mm cost, and is it available for purchase?

The price is 21.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 10.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SYNOLOGY products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SYNOLOGY service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12118707/67658221_large.webp