# Construction screws Koelner/Rawlplug model R-S3-PTX-40030, partial thread, countersunk head, 4.0×30 mm, pack of 28

**URL:** https://aio.lv/en/product--koelnerrawlplug-r-s3-ptx-40030--12359636
**Data updated:** 2026-04-26 18:52 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** Koelner/Rawlplug
**Manufacturer code:** R-S3-PTX-40030
**EAN:** 5906675481883
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 11.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelnerrawlplug-r-s3-ptx-40030--12359636

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Pack of 28 Koelner/Rawlplug construction screws R-S3-PTX-40030 with partial thread and countersunk (conical) head, 4.0×30 mm. Designed for joining wooden elements and general structural fixings where a flush finish is required. Suitable for use with compatible anchors, dowels and in woodworking, assembly and repair tasks.

## Long description

Pack of 28 Koelner/Rawlplug construction screws model R-S3-PTX-40030, 4.0×30 mm with partial thread and countersunk (conical) head. These screws are intended for joining wooden elements and general structural fixings where a flush finish is required. The partial thread design provides clamping force while the smooth shank section allows the top piece to be drawn tightly to the substrate. Countersunk head enables a recessed finish suitable for further surface treatment or for use with wooden plugs.
Advantages
These construction screws combine a partial thread for secure clamping with a countersunk head that sits flush with the material surface. The 4.0×30 mm size is a common dimension for medium-duty woodworking and assembly tasks, offering straightforward installation and compatibility with standard screwdrivers or bits. Sold in a pack of 28, they are convenient for small projects, repairs and repeat fixings.
Suitable for
 Joining timber-to-timber connections in furniture assembly and carpentry
 General structural fixings where a flush head is required
 Use with compatible anchors and dowels for wood-to-masonry or mixed-material connections
 Repair, renovation and DIY projects involving medium-duty fastening
When it may not be suitable
These screws are intended primarily for use in wood and in conjunction with suitable anchors; they are not specified for use in high-load structural applications where certified structural fasteners are required. They may not be appropriate for prolonged outdoor exposure unless the specific corrosion resistance of the fastener material matches environmental requirements.
Key specifications
 Length: 30 mm
 Diameter: 4.0 mm
 Thread type: partial thread (smooth shank with threaded tip)
 Head type: countersunk (conical) head for flush finishing
 Pack quantity: 28 pieces
 Intended materials: wood and compatible anchors/dowels
How to use
Pre-drill pilot holes appropriate to the screw diameter and the density of the wood to avoid splitting; use a drill bit slightly smaller than the core diameter of the screw for hard timber and a bit closer to the outer diameter for softwood. Position the pieces to be joined, insert the screw through the top element into the lower member or anchor, and drive with a compatible screwdriver bit or drill at moderate speed until the head is flush with the surface. For use with dowels or anchors, follow the anchor manufacturer’s instructions for hole size and setting depth.
What to consider before purchase
 Confirm that 4.0×30 mm length and 4.0 mm diameter suit your material thickness and required embedment
 Check corrosion resistance of the screws for indoor or outdoor use
 Ensure compatibility with the anchors or dowels you plan to use
 Decide if the pack size of 28 meets the quantity needed for your project
Usage recommendations
Use appropriate pilot hole sizes and driving tools to prevent wood splitting and to achieve a clean, flush finish. When fixing into masonry or using anchors, pair these screws with compatible dowels and follow anchor guidance for hole diameter and depth.

## FAQ

### How much does the Construction screws Koelner/Rawlplug R-S3-PTX-40030 cost, and is it available for purchase?

The price is 13.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 165 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 13.07.2026 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

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