# Spring Washer Koelner M12 A2 DIN 127, stainless steel, set of 11

**URL:** https://aio.lv/en/product--koelner-b-127-12-a2--11800871
**Data updated:** 2026-03-09 07:39 (EET)
**Category:** Tool kits and accessories
**Manufacturer:** Koelner
**Manufacturer code:** B-127-12-A2
**EAN:** 5906675427645
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-b-127-12-a2--11800871

## 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

Koelner spring washer DIN 127 for M12 fasteners, made of A2 stainless steel. Supplied as a set of 11 pieces, these split (spring) washers provide axial preload to prevent loosening of bolts and nuts under vibration. Suitable for general mechanical assemblies, construction, automotive and maintenance tasks where corrosion-resistant locking elements are needed.

## Long description

Koelner spring washer M12 A2 DIN 127 is a split (spring) washer designed to provide axial preload for M12 bolts and nuts. Manufactured from A2 stainless steel, this set of 11 washers offers corrosion resistance suitable for environments where rust prevention and reliable fastening are required. The washer's DIN 127 geometry ensures compatibility with standard M12 fasteners and helps reduce the risk of loosening due to vibration and dynamic loads.
Advantages
These A2 stainless steel spring washers combine mechanical locking action with corrosion resistance, making them appropriate for indoor and outdoor applications. The DIN 127 split design delivers consistent spring force to maintain tension in bolted joints, while the stainless material resists oxidation and staining. Supplied as a set of 11, they allow for small repair jobs or multiple fastening points without immediate need to purchase larger quantities.
Suitable for
Mechanical assemblies and machine maintenance
Construction and metalwork fastening
Automotive repairs and component assembly
Outdoor installations and environments with moderate moisture exposure
General maintenance tasks requiring corrosion-resistant locking washers
Key specifications
Washer type: split (spring) washer, DIN 127 style
Nominal size: for M12 fasteners
Material: A2 stainless steel (corrosion-resistant grade)
Finish: natural stainless steel surface
Pack quantity: 11 pieces
How to use
Place the spring washer between the mating surface and the nut (or under the head of the bolt) so the washer's split makes contact to provide axial preload when the fastener is tightened. Tighten the nut or bolt to the specified torque for the joint; the spring washer will compress slightly and exert a retaining force to reduce loosening under vibration. For best results, use with matching M12 bolts and nuts and ensure mating surfaces are clean and free of debris.
Usage recommendations
Use these washers where moderate corrosion resistance and vibration locking are required. Avoid using A2 stainless spring washers in highly corrosive chemical environments or chloride-rich conditions for prolonged periods; consider higher-grade stainless materials for such exposures. Confirm torque values for the specific joint to prevent over-compression of the spring washer and ensure proper clamp load.

## FAQ

### How much does the Spring Washer Koelner M12 A2 DIN 127 — 11 pcs cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 720 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 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

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