# Construction wood screw Koelner TS-4070 4x70 mm, countersunk head, TX drive

**URL:** https://aio.lv/en/product--koelner-ts-4070--11800667
**Data updated:** 2026-03-09 07:39 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner
**Manufacturer code:** TS-4070
**EAN:** 5906675455389
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-ts-4070--11800667

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Koelner TS-4070 is a construction screw for wood with dimensions 4x70 mm, featuring a countersunk (conical) head and TX (Torx) drive. Designed for joining wooden elements and structural carpentry, it provides secure fastening in timber-based projects. Suitable for indoor and outdoor carpentry work where a flush finish and reliable torque transfer are required.

## Long description

Koelner TS-4070 4x70 mm is a construction wood screw with a countersunk (conical) head and TX (Torx) drive designed for secure fastening of timber components. The screw is intended for joining wooden elements in structural and general carpentry tasks where a flush head finish and reliable torque transfer are required. Its geometry and drive type support efficient installation and reduced cam‑out during driving.
Advantages
The countersunk head allows the screw to sit flush with or below the wood surface, enabling neat joints and easy subsequent finishing. TX (Torx) drive ensures improved engagement with the bit, higher torque transfer and reduced risk of stripping compared with slotted or Phillips drives. Standard length and diameter provide sufficient penetration and pull‑out resistance for common framing, decking and joinery applications.
Suitable for
Joining framing members and structural timber connections in carpentry
Fixing decking boards, cladding and wooden panels
Indoor and outdoor woodworking where a flush finish is needed
Applications requiring reliable torque transfer and reduced cam‑out
Key specifications
Material: typical construction screw metal suitable for wood fastenings
Head type: countersunk (conical) for flush installation
Drive type: TX (Torx) for improved bit engagement
Diameter: 4 mm
Length: 70 mm
How to use
Select an appropriate TX bit and a compatible drill or screwdriver. Pre‑drilling is recommended for hard or dense hardwoods and when working near board edges to prevent splitting. Position the screw perpendicular to the workpiece and drive it until the head is flush with or slightly below the wood surface, taking care not to over‑drive. For outdoor installations or exposed timber, use screws with suitable corrosion protection and ensure correct edge distances and spacing according to structural requirements.
Usage recommendations
For best results, match screw length to the combined thickness of the joined elements to ensure adequate thread engagement. When installing into hardwood or near edges, use a pilot hole sized to the core diameter of the screw. Use a torque‑controlled driver when working with softwoods or thin boards to avoid over‑countersinking.

## FAQ

### How much does the Koelner TS-4070 construction wood screw 4x70 mm cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 228 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 13.07.2026 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 Koelner 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 Koelner 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

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