# Wood screws Koelner 4.2x70 mm phosphated for wood, container pack B-SL-FT-4270

**URL:** https://aio.lv/en/product--koelner-b-sl-ft-4270--11800891
**Data updated:** 2026-03-09 07:40 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner
**Manufacturer code:** B-SL-FT-4270
**EAN:** 5906675301082
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 38.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-b-sl-ft-4270--11800891

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Koelner phosphated wood screws 4.2×70 mm supplied in a container pack (model B-SL-FT-4270). Intended for fastening wooden elements, these screws feature a phosphated finish for basic corrosion resistance and a length of 70 mm with 4.2 mm diameter. Suitable for construction, carpentry, furniture assembly and general woodwork where medium-length fasteners are required.

## Long description

Koelner 4.2x70 mm phosphated wood screws in a container pack are designed for fastening wooden elements where medium-length, reliable fasteners are required. These screws have a 4.2 mm nominal diameter and a 70 mm length, with a phosphated surface treatment that provides basic corrosion resistance and reduces friction during driving. Supplied in a convenient container pack, they are intended for routine construction, carpentry, furniture assembly and general woodworking tasks.
Advantages
The phosphated finish offers improved protection against surface rust compared with untreated steel and helps lubricate the threading for easier screw driving. The 4.2 mm diameter combined with 70 mm length provides sufficient hold in common soft and hardwoods for structural and finishing applications. The container pack keeps screws organized on site and reduces handling time during installation.
Suitable for
Joining timber framing and studs
Furniture assembly and repairs
Fitting wooden panels and cladding
Decking substructure and general carpentry
Key specifications
Diameter: 4.2 mm (nominal)
Length: 70 mm
Surface treatment: phosphated for basic corrosion resistance
Head and drive type: designed for common screwdrivers or bits (compatible with standard drives)
Material: steel
Packaging: container pack for on-site storage and handling
How to use
Select an appropriately sized pilot hole where required for the wood species and screw diameter to prevent splitting, especially in hardwoods or near board edges. Use a compatible screwdriver or bit and apply steady pressure while driving the screw to avoid cam-out. For repeatable results, clamp workpieces and align fasteners before driving. Where greater corrosion resistance is necessary, consider using coated or stainless fasteners instead of phosphated screws.
Usage recommendations
For optimal performance, pre-drill pilot holes in dense hardwoods and near edges, and use a torque-controlled driver to prevent overdriving. Store the container pack in a dry place to maintain the phosphated surface and ease of handling on site.

## FAQ

### How much does the Koelner wood screws 4.2x70 mm B-SL-FT-4270 cost, and is it available for purchase?

The price is 46.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1140 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 10.07.2026 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 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 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/11800891/67202298_large.webp