# Prox Wood Construction Screw 4x40 mm TX20 Countersunk Partial Thread 500 pcs

**URL:** https://aio.lv/en/product--prox-9152874--12600541
**Data updated:** 2026-07-29 04:15 (EEST)
**Category:** Other goods
**Manufacturer:** Prox
**Manufacturer code:** 9152874
**EAN:** 4750959152874
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-08-29 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--prox-9152874--12600541

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.79 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

Prox wood construction screw measuring 4x40 mm with a 25 mm partial thread, countersunk head, and TX20 Torx drive. Designed for secure and stable assembly of wooden structures, minimizing wood splitting and ensuring a flush finish. The Torx drive allows high torque transmission without slipping. Certified under EN 14592. Supplied in a pack of 500 pieces, ideal for professional carpentry and various construction projects.

## Long description

The Prox Wood Construction Screw measuring 4x40 mm with a 25 mm partial thread is engineered for reliable and stable assembly in various woodworking and building applications. Featuring a countersunk head and a TX20 Torx drive, this fastener is designed to provide a clean, flush surface finish while ensuring efficient torque transfer during installation. Certified according to EN 14592, these screws meet established standards for structural timber products, making them a dependable choice for professional tradespeople and DIY enthusiasts alike.
Advantages
These wood construction screws are specifically designed to minimize the risk of wood splitting during installation, preserving the integrity of your materials. The partial thread design ensures that joined wooden elements are pulled tightly together for a secure and stable connection. The countersunk head allows the screw to sink flush with the wood surface without requiring complex countersinking prep work. Furthermore, the TX20 Torx drive system enables high torque transmission while significantly reducing the likelihood of bit slippage, which helps protect both the screw head and the driving tool.
Suitable for
Assembly of wooden structures and frames
General carpentry and woodworking projects
Installing timber boards and panels
Professional construction and renovation work
When it may not be suitable
These screws are not recommended for use in non-wooden substrates such as concrete, brick, or metal without appropriate anchors. Additionally, un-coated standard steel screws may not be suitable for highly corrosive environments or outdoor applications involving treated woods prone to accelerated metal degradation unless specifically rated for such exposure.
Key specifications
Dimensions: 4 mm diameter by 40 mm length
Thread type: Partial thread with a 25 mm thread length
Head type: Countersunk head
Drive type: TX20 Torx
Packaging quantity: 500 pieces per pack
Standard compliance: EN 14592
How to use
Select a suitable power drill or screwdriver equipped with a TX20 bit. Position the wooden elements to be joined and align them correctly. Place the screw perpendicular to the wood surface and drive it in at a steady speed. The partial thread will pull the top wooden component tightly against the base material as the countersunk head seats itself flush with or slightly below the surface of the wood. Avoid overtightening to prevent stripping the wood fibers or damaging the screw drive.
What to consider before purchase
Verify that the 4x40 mm dimensions and 25 mm thread length are appropriate for the thickness of the wood you plan to fasten.
Ensure you have a compatible TX20 screwdriver bit available for installation.
Check if the project environment requires specialized corrosion-resistant fasteners.
Confirm the pack size of 500 pieces aligns with the volume required for your specific task.
For optimal results, always pre-drill pilot holes when working near the edges of hard or dense timber to prevent splitting, and ensure the driver bit is fully engaged in the TX20 recess before applying torque.

## FAQ

### How much does the Prox Wood Construction Screw 4x40 mm TX20 500 pcs cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 288 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 06.08.2026 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 Prox 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 Prox 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/12600541/68978098_large.webp