# Wood construction screw Koelner TS-5040 5x40 mm, countersunk head, TX drive

**URL:** https://aio.lv/en/product--koelner-ts-5040--12274137
**Data updated:** 2026-04-26 18:46 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner
**Manufacturer code:** TS-5040
**EAN:** 5906675455440
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-ts-5040--12274137

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Koelner TS-5040 is a wood construction screw sized 5x40 mm with a countersunk (conical) head and TX (Torx) drive. Designed for fastening timber and wooden elements in construction and carpentry, it provides secure fixing where a flush head finish is required. Suitable for structural joins, furniture assembly and general woodwork.

## Long description

Koelner TS-5040 5x40 mm is a wood construction screw with a countersunk (conical) head and a TX (Torx) drive, intended for fastening timber and wooden elements in construction and carpentry. The 5x40 mm size is suitable for a wide range of structural and non-structural wood-to-wood connections where a flush head finish is required. The TX drive improves torque transfer and reduces cam-out compared with slotted or Phillips drives.
Advantages
The countersunk head allows the screw to sit flush with or below the wood surface for a neat finish and reduced interference with subsequent operations. The Torx (TX) drive provides better engagement with the driver bit, enabling higher torque application and more controlled tightening. The declared diameter and length combination offers dependable holding power for many carpentry tasks while remaining compatible with standard wood pre-drilling or pilot-hole techniques when needed.
Suitable for
Joining timber framing, studs and battens
Furniture assembly where a flush head is desired
Fixing wooden cladding, trim and moldings
General woodworking and carpentry repairs
When it may not be suitable
This screw is designed specifically for wood and wood-based materials; it is not intended as a fastener for metal-to-metal connections or for use in masonry without appropriate anchors. For applications requiring corrosion resistance beyond standard indoor use or untreated outdoor exposure, consider screws with specified protective coatings or stainless steel variants. Very thin sheet materials or applications that require countersinking into extremely hard timbers may need pilot holes or alternative fastener types.
Key specifications
Type: wood construction screw
Diameter × length: 5 × 40 mm
Head style: countersunk (conical)
Drive type: TX (Torx)
Typical use: timber and wooden elements fastening
How to use
Select an appropriate TX bit that matches the screw drive and, if working with hardwood or to avoid splitting, pre-drill a pilot hole of suitable diameter and depth. Place the screw so the countersunk head aligns with the timber surface and drive it steadily until the head is flush or slightly below the surface. Use controlled torque to avoid over-tightening which can strip the drive or damage the timber. For exposed applications consider filling or covering the countersunk head if a concealed appearance is required.
What to consider before purchase
Required length and diameter for the thickness and load of the wood elements
Whether a countersunk head is needed for a flush finish
Need for corrosion-resistant coating or stainless steel for outdoor use
Compatibility with available TX driver bits and power tools
Usage recommendations
For best results use a compatible TX driver bit, apply steady torque, and pre-drill pilot holes in dense hardwoods. Choose screw length that provides sufficient embedment into the receiving member—generally at least two-thirds of the total screw length into the second piece for structural joins.

## FAQ

### How much does the Koelner TS-5040 wood construction screw 5x40 cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 299 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 03.07.2026 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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