# Shumee Mushroom Head Bolt with Serrated Flange Nut M10x20, 100 Pieces

**URL:** https://aio.lv/en/product--shumee-651641--12482507
**Data updated:** 2026-05-27 18:00 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** Shumee
**Manufacturer code:** 651641
**EAN:** 5900993104288
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 2.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--shumee-651641--12482507

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

This set includes 100 Shumee mushroom head bolts paired with serrated flange nuts, size M10x20. Designed for secure fastening, the serrated flange provides excellent vibration resistance and prevents loosening. Ideal for various construction, automotive, and DIY assembly projects requiring a reliable, low-profile connection with a wide bearing surface.

## Long description

The Shumee Mushroom Head Bolt with Serrated Flange Nut M10x20 set provides a reliable fastening solution for a wide range of assembly tasks. This set includes 100 pieces of high-quality bolts and matching nuts, designed to ensure a secure and durable connection. The mushroom head design offers a clean, low-profile finish, while the serrated flange on the nut acts as a locking mechanism to maintain tension and prevent loosening due to vibration.
Advantages
The primary benefit of this fastener set is the integrated serrated flange, which eliminates the need for additional washers and provides superior resistance against loosening in dynamic environments. The mushroom head provides a smooth, aesthetically pleasing surface that minimizes snagging risks, making it ideal for visible applications. With 100 pieces included, this set offers excellent value for both professional contractors and home DIY enthusiasts who require consistent, high-strength hardware for their projects.
Suitable for
Automotive assembly and repair
Construction and structural framing
Furniture assembly and DIY projects
General machinery maintenance
Applications requiring vibration resistance
This product may not be suitable for high-precision engineering applications where specific torque tolerances or specialized material grades are required. It is also not intended for use in highly corrosive environments unless additional protective coatings are applied.
Key specifications
Bolt type: Mushroom head
Nut type: Serrated flange nut
Thread size: M10
Length: 20 mm
Quantity: 100 pieces
To use these fasteners, align the components you wish to join and insert the mushroom head bolt through the pre-drilled holes. Place the serrated flange nut onto the threaded end and tighten using a standard wrench or socket. The serrations on the flange will grip the surface of the material as you tighten, creating a secure lock that resists loosening.
What to consider before purchase
Verify that the M10 thread size is compatible with your existing holes or equipment.
Ensure the 20 mm length is sufficient for the thickness of the materials being joined.
Check if the material surface can withstand the pressure of the serrated flange without damage.
For optimal performance, ensure the mating surfaces are clean and free of debris before tightening. Do not over-torque the nuts, as this may damage the serrations or the surface of the material.

## FAQ

### How much does the Shumee Mushroom Head Bolt with Serrated Flange Nut M10x20 cost, and is it available for purchase?

The price is 3.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 06.07.2026 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 Shumee 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 Shumee 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/12482507/68806530_large.webp