# Wood construction screw Koelner/Rawlplug CS-8340 8x340 mm, washer head

**URL:** https://aio.lv/en/product--koelnerrawlplug-cs-8340--11800646
**Data updated:** 2026-03-09 07:39 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner/Rawlplug
**Manufacturer code:** CS-8340
**EAN:** 5906675454771
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 16.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelnerrawlplug-cs-8340--11800646

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Construction screw for wood Koelner/Rawlplug CS-8340, size 8x340 mm with a washer head. Designed for structural timber connections and heavy-duty wood assemblies, the screw provides deep thread engagement for strong holding power and reliable load transfer. Suitable for indoor and outdoor carpentry, decking, beams and framework where long threaded fasteners are required.

## Long description

Wood construction screw Koelner/Rawlplug CS-8340 8x340 mm with a washer head is a long-threaded fastener designed for structural timber connections and heavy-duty wood assemblies. Its deep thread profile ensures secure bite into soft and hard woods, while the extended length and robust shank allow transfer of significant shear and tensile loads. The washer head provides increased bearing surface to reduce pull-through and improve clamping of timber elements in beams, posts and decking.
Advantages
The screw offers dependable holding power through an optimized thread form and full-length engagement appropriate for long timber joints. The washer head increases contact area for better load distribution and reduces surface damage to wooden members. Made for both indoor and outdoor carpentry, the fastener is suitable for applications requiring durable connections and consistent performance under sustained load.
Suitable for
 Structural timber connections (beams, rafters, posts)
 Decking and terrace construction
 Heavy-duty framing and load-bearing wooden assemblies
 Timber repair and reinforcement where long fasteners are required
Key specifications
 Diameter: 8 mm
 Length: 340 mm
 Head type: washer head for increased bearing surface
 Thread: deep, full-length thread for strong wood engagement
 Material/coating: designed for carpentry use (suitable for indoor and outdoor applications)
How to use
Pre-drill a pilot or clearance hole appropriate to the wood species and screw diameter to avoid splitting, especially near edges or ends. Align the timber elements to be joined and clamp if necessary. Drive the screw using a compatible bit and appropriate torque, ensuring the washer head sits flush against the wood surface for optimal load distribution. When installing outdoors or in exposed conditions, use appropriate corrosion-resistant fasteners or coatings and follow local building codes for structural connections.
Usage recommendations
For reliable structural performance, select pilot hole diameter and embedding depth according to timber type and joint design. Use washers or plates where additional bearing capacity is needed, and verify fastening spacing and edge distances per relevant construction standards.

## FAQ

### How much does the Wood construction screw Koelner/Rawlplug CS-8340 cost, and is it available for purchase?

The price is 19.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 15.07.2026 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/Rawlplug 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/Rawlplug 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/11800646/67202050_large.webp