# TDM Brass 121E Lock-Nut 1¼ inch

**URL:** https://aio.lv/en/product--tdmbrass-120ep4--12504969
**Data updated:** 2026-06-10 09:36 (EEST)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** tdm\_brass
**Manufacturer code:** 120EP4
**EAN:** 2000511383867
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tdmbrass-120ep4--12504969

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.89 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The TDM Brass 121E lock-nut is a high-quality plumbing component designed for secure pipe connections. Featuring a 1¼ inch thread size, this brass fitting ensures reliable fastening in various hydraulic and heating systems. Its durable construction provides excellent resistance to corrosion and mechanical stress, making it an essential part for professional plumbing installations and maintenance.

## Long description

The TDM Brass 121E lock-nut is a high-quality plumbing component engineered for secure and reliable pipe connections. Designed with a 1¼ inch thread size, this brass fitting is an essential element for maintaining the integrity of hydraulic and heating systems. Its robust construction ensures long-term performance, providing a stable fastening solution that withstands the demands of professional plumbing environments.
Advantages
This lock-nut is manufactured from high-grade brass, which offers superior resistance to corrosion and oxidation compared to standard steel components. The precision-machined threads ensure a smooth and tight fit, reducing the risk of leaks and mechanical failure. Its durable design allows for repeated installation and removal without compromising the structural integrity of the connection, making it a reliable choice for both new installations and system repairs.
Suitable for
Securing pipe connections in residential and commercial plumbing systems
Fastening components in central heating and hot water distribution networks
Hydraulic system maintenance and repair
Industrial piping applications requiring brass fittings
When it may not be suitable
This component is not intended for use in systems involving highly acidic or corrosive chemical fluids that may react with brass. It is also not suitable for high-pressure steam applications or environments where the temperature exceeds the thermal limits of standard brass fittings.
Key specifications
Material: High-quality brass
Thread size: 1¼ inch
Type: Lock-nut
Application: Plumbing and heating systems
How to use
To install the TDM Brass 121E lock-nut, ensure that the mating pipe threads are clean and free of debris. Thread the lock-nut onto the pipe by hand until it makes contact with the fitting or surface being secured. Use an appropriate wrench to tighten the nut firmly, ensuring it is seated correctly to prevent vibration or loosening. Do not overtighten, as this may damage the threads.
What to consider before purchase
Verify that the 1¼ inch thread size matches your existing pipe or fitting diameter
Ensure the material compatibility with your specific fluid type and system environment
Check the available space for tool access during installation
Usage recommendations
Regularly inspect the connection for signs of moisture or loosening during routine system maintenance. If the lock-nut is removed for repairs, inspect the threads for wear before reinstallation to ensure a continued secure seal.

## FAQ

### How much does the TDM Brass 121E Lock-Nut 1¼ inch cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 60 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 01.07.2026 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 tdm\_brass 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 tdm\_brass 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/12504969/68845721_large.webp