# Wood screw Koelner/Rawlplug CS-8300 8x300 mm, washer head, construction screw

**URL:** https://aio.lv/en/product--koelnerrawlplug-cs-8300--11800836
**Data updated:** 2026-03-09 07:39 (EET)
**Category:** Miscellaneous repair tools
**Manufacturer:** Koelner/Rawlplug
**Manufacturer code:** CS-8300
**EAN:** 5906675454757
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 23.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelnerrawlplug-cs-8300--11800836

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Construction wood screw Koelner/Rawlplug CS-8300, size 8x300 mm with a washer-type head. Designed for fastening heavy timber elements, beams and structural wooden connections where deep penetration and secure clamping are required. Suitable for indoor and sheltered outdoor timber joinery, providing mechanical load-bearing connections when using appropriate predrilling and installation tools.

## Long description

Koelner/Rawlplug CS-8300 construction wood screw, size 8x300 mm with a washer head, is designed for secure mechanical connections in heavy timber work. The screw is intended to fasten beams, large timber elements and structural wooden joints where deep penetration and strong clamping force are required. It is suitable for indoor and sheltered outdoor timber joinery when combined with appropriate pre-drilling, corrosion protection and installation tools.
Advantages
The washer head provides a broad bearing surface that reduces the risk of head pull-through and distributes pressure evenly across the timber surface. The long 300 mm length allows connection of thick sections and multilayer assemblies in a single fastener, reducing the need for multiple shorter screws. Designed for structural use, the screw delivers high shear and withdrawal resistance when installed following recommended pre-drilling and embedment depths.
Suitable for
 Fastening beams and large cross-sections in timber frames
 Connecting structural wooden elements and heavy carpentry joints
 Timber-to-timber connections in indoor and sheltered outdoor applications
 Repair and reinforcement of wooden structures and decking subframes
Key specifications
 Diameter: 8 mm
 Length: 300 mm
 Head type: washer head for increased bearing area
 Designed for mechanical load-bearing timber connections
 Requires pre-drilling appropriate to timber species and thickness
How to use
Select a drill bit size and pre-drill pilot holes appropriate for 8 mm diameter screws and the timber species to avoid splitting. Place the screw in position and drive using a power screwdriver or impact driver with compatible bit and torque control; avoid excessive torque to prevent head damage. Ensure sufficient embedment depth into the receiving member and maintain alignment of connected elements during installation. For connections exposed to moist environments, apply appropriate corrosion protection methods and use compatible treated timber or protective coatings.
Usage recommendations
Follow structural design guidelines for spacing, edge distances and embedment depths. Use corrosion-resistant fasteners or additional protection when installing in humid or partially exposed locations. When in doubt, consult a structural engineer or timber construction professional to confirm required screw quantity and pre-drilling dimensions for load-bearing applications.

## FAQ

### How much does the Wood screw Koelner/Rawlplug CS-8300 8x300 mm cost, and is it available for purchase?

The price is 28.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 128 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 06.07.2026 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/11800836/67202230_large.webp