# Sewing thread Brother Aerolock Madeira Dark Blue 8420, 2000 m spool

**URL:** https://aio.lv/en/product--brother-91198420--8579921
**Data updated:** 2026-02-12 21:53 (EET)
**Category:** Sewing Machines
**Manufacturer:** Brother
**Manufacturer code:** 91198420
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 4.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--brother-91198420--8579921

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Brother Aerolock Madeira sewing thread in Dark Blue (8420) on a 2000 m spool. Designed for overlocking and serging applications, this Aerolock thread offers consistent thickness and smooth feed for professional and home sewing machines. Suitable for seams, edge finishing and stretch fabrics, it reduces breakages and improves stitch quality.

## Long description

Brother Aerolock Madeira Dark Blue 8420 sewing thread on a 2000 m spool is designed for overlocking and serging work on both professional and home sewing machines. The thread provides consistent thickness and a smooth feed that helps achieve even seams and reliable edge finishes. Its formulation and construction make it suitable for use on stretch fabrics and multiple layers, where reduced breakage and uniform stitch formation are required.
Advantages
The Aerolock Madeira thread delivers stable tension and minimal lint generation, supporting uninterrupted sewing sessions. Its smooth surface reduces friction in loopers and needles, which decreases the frequency of thread breaks and skipped stitches. Available in a deep dark blue shade, the thread maintains colorfastness under normal laundering and handling, ensuring durable seams and professional-looking finishes.
Suitable for
 Overlocking and serging on knit and woven fabrics
 Edge finishing and seam reinforcement
 Stitching stretch garments and activewear
 Multi-layer fabric assemblies and home sewing projects
Key specifications
 Color: Dark Blue
 Length: 2000 m per spool
 Thread type: Overlock / serger thread
 Compatibility: Suitable for domestic and industrial overlock/serger machines
 Performance: Smooth feed, consistent thickness, reduced lint
How to use
Wind the thread onto the looper and needle according to your machine's threading path, maintaining recommended tension settings for overlocking or serging. Test-stitch on a fabric scrap to adjust stitch length and differential feed when working with stretch or thin materials. Replace the thread spool when the remaining length becomes insufficient to maintain consistent tension during longer seams.
Usage recommendations
Use a needle and machine settings appropriate for the fabric type; for stretch fabrics choose stretch or ballpoint needles. Keep the machine clean and regularly remove lint to preserve smooth feed. Store the spool away from direct sunlight and excessive humidity to maintain color and performance.

## FAQ

### How much does the Brother Aerolock Madeira thread Dark Blue 8420 2000 m cost, and is it available for purchase?

The price is 4.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 02.07.2026 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: Cash payment, 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 Brother 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 Brother 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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