# Hex Head Bolt Koelner DIN 933 M5×20mm A2 stainless steel full thread, pack of 6

**URL:** https://aio.lv/en/product--koelner-b-933-05020-a2--11801143
**Data updated:** 2026-03-09 07:40 (EET)
**Category:** Miscellaneous repair tools
**Manufacturer:** Koelner
**Manufacturer code:** B-933-05020-A2
**EAN:** 5906675427485
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-b-933-05020-a2--11801143

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Koelner hex head bolt DIN 933, M5×20 mm, A2 stainless steel with full thread supplied in a pack of 6. Designed for general fastening applications where a metric M5 screw with full thread is required, suitable for indoor and outdoor use due to A2 corrosion resistance. Commonly used in metal, wood and machine assembly, repairs and mounting tasks.

## Long description

Koelner hex head bolt DIN 933 M5×20 mm in A2 stainless steel is a fully threaded fastening element supplied in a pack of 6. Conforming to the DIN 933 standard, this bolt features a metric M5 diameter and 20 mm length, with a full thread along the shank and a hexagonal head designed for wrench or socket tightening. A2 stainless steel provides general corrosion resistance suitable for both indoor and sheltered outdoor applications. The bolt is intended for assembly, repair and mounting tasks across metal, wood and machine components where a reliable, standard metric fastener is required.
Advantages
The full thread along the shank allows secure clamping and fine adjustment of the joined parts, while the hex head enables straightforward tightening with common tools such as spanners or sockets. A2 stainless steel offers moderate corrosion resistance without additional coating, reducing the need for maintenance in typical environments. Supplied as a pack of six, this product provides multiple fasteners for small projects or repairs and ensures consistent dimensions and fit where DIN 933 compatibility is required.
Suitable for
General mechanical assembly and repair work
Fastening metal sheets, brackets and frames
Wood-to-metal connections and light carpentry
Mounting small machines, equipment and fixtures
DIY projects and maintenance tasks
Key specifications
Standard: DIN 933
Thread: full thread, metric
Nominal diameter: M5
Length: 20 mm (shank length from under head)
Material: A2 stainless steel (austenitic, corrosion resistant)
Head type: hexagonal head for wrench or socket
Pack quantity: 6 pieces
How to use
Select an appropriate nut or tapped hole with matching M5 thread. Position the bolt through the assembled parts so the head bears against the outer surface; engage the mating thread and tighten using a suitable spanner or socket until the required clamping force is achieved. For through-bolted joints, use a matching M5 nut and, if needed, a washer to distribute load. Avoid over-tightening which could damage threads or connected materials; follow torque recommendations for M5 fasteners when a specified preload is required.
Usage recommendations
Use A2 stainless steel fasteners for indoor and sheltered outdoor environments; for prolonged exposure to marine or highly corrosive conditions consider higher-grade stainless steel or additional protective coatings. Store bolts in a dry place and inspect threads for debris or damage before installation to ensure reliable fastening performance.

## FAQ

### How much does the Koelner Hex Head Bolt DIN 933 M5×20 A2, 6pcs cost, and is it available for purchase?

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 272 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 08.07.2026 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/11801143/67202544_large.webp