# Wood screw Koelner/Rawlplug CS-8380 8×380 mm, washer head, construction fastener

**URL:** https://aio.lv/en/product--koelnerrawlplug-cs-8380--11800647
**Data updated:** 2026-03-09 07:39 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner/Rawlplug
**Manufacturer code:** CS-8380
**EAN:** 5906675454795
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelnerrawlplug-cs-8380--11800647

## 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 wood screw Koelner/Rawlplug CS-8380, size 8×380 mm with a washer head. Designed for fastening large timber elements and structural joins where long, durable screws are required. Suitable for use in treated and untreated wood, framing, beams and heavy carpentry. Provides strong pull-out resistance and stable clamping for structural assemblies.

## Long description

Wood screw Koelner/Rawlplug CS-8380 8×380 mm with a washer head is a construction fastener designed for joining large timber elements and heavy carpentry tasks. The long threaded shank and robust geometry provide secure clamping and reliable pull-out resistance when used in treated and untreated wood. The washer head increases bearing surface for stable assemblies and reduces the risk of head embedment into soft timber.
Advantages
The long 380 mm length allows penetration through thick beams and multi-layer timber assemblies while maintaining strong axial load capacity. The washer head distributes load evenly, improving joint stability without additional washers. The screw’s thread design ensures efficient driving and firm grip in a variety of wood densities, delivering consistent fastening performance for structural connections.
Suitable for
 Framing and beam-to-beam connections
 Heavy carpentry and timber framing
 Attaching large planks, posts, and structural members
 Repair and reinforcement of existing wooden structures
Key specifications
 Diameter: 8 mm
 Length: 380 mm
 Head type: washer head for increased bearing area
 Material: suitable for use in treated and untreated wood (corrosion resistance depends on coating/type)
 Thread type: full/partial thread for strong withdrawal resistance and clamping
 Application: designed for structural timber connections and heavy-duty fastening
How to use
Pre-drill a pilot hole appropriate to the screw diameter and the density of the wood to reduce splitting, especially near edges or end grain. Position the components to be joined and drive the screw using a high-torque driver or impact wrench with the correct bit that matches the screw head. Ensure the head bears flat against the timber surface for optimum load distribution; avoid over-torquing to prevent crushing of softer wood fibers.
Usage recommendations
For structural applications, follow local building codes and engineering requirements. Select corrosion-resistant variants or additional protective measures when used outdoors or in humid environments. Use appropriate safety gear and verify load-bearing capacity when designing connections with long timber screws.

## FAQ

### How much does the Wood screw Koelner/Rawlplug CS-8380 8×380 mm cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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/11800647/67202051_large.webp