# TDM Brass 121E 1 Lock-Nut

**URL:** https://aio.lv/en/product--tdmbrass-121e01--12505170
**Data updated:** 2026-06-10 09:27 (EEST)
**Category:** Nails, screws, self-tapping screws & dowels
**Manufacturer:** tdm\_brass
**Manufacturer code:** 121E01
**EAN:** 4770364165931
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tdmbrass-121e01--12505170

## Delivery options

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

## Summary description

The TDM Brass 121E 1 lock-nut is a high-quality threaded fastener designed for secure pipe connections and plumbing systems. Made from durable brass, this component ensures reliable locking and vibration resistance in various industrial and residential piping applications. Its precise threading allows for easy installation and a tight seal, making it an essential part for maintaining system integrity.

## Long description

The TDM Brass 121E 1 lock-nut is a professional-grade threaded fastener engineered for robust pipe connections and plumbing infrastructure. Constructed from high-quality brass, this component provides exceptional durability and corrosion resistance, ensuring a long service life in both residential and industrial piping systems. Its precise internal threading is designed for a secure fit, effectively locking components in place and maintaining the integrity of the connection under various operating conditions.
Advantages
The primary advantage of this brass lock-nut is its superior material composition, which offers excellent resistance to mechanical stress and temperature fluctuations. The precision-engineered threads facilitate smooth installation and reliable tightening, minimizing the risk of leaks or loosening due to vibration. Its compact design allows for use in tight spaces where standard fasteners might be difficult to manage, providing a versatile solution for plumbing maintenance and assembly.
Suitable for
Securing plumbing pipe connections
Industrial piping system assembly
Residential water supply installations
Applications requiring vibration-resistant locking
When it may not be suitable
This lock-nut is designed specifically for 1-inch threaded connections and may not be compatible with pipes of different diameters or non-standard thread types. It is not intended for use in high-pressure steam systems or environments with highly corrosive chemicals that could degrade brass material.
Key specifications
Material: Brass
Thread type: 1 inch internal thread
Operating temperature range: -20°C to +120°C
How to use
To install the TDM Brass 121E 1 lock-nut, ensure the pipe thread is clean and free of debris. Thread the nut onto the pipe or fitting by hand until it reaches the desired position. Use an appropriate wrench to tighten the nut securely, ensuring it is seated firmly against the mating component to create a stable lock. Avoid overtightening, which could potentially damage the threads or the brass material.
What to consider before purchase
Verify that your pipe diameter is exactly 1 inch
Check that the thread type matches your existing plumbing components
Ensure the operating temperature of your system falls within the -20°C to +120°C range
Usage recommendations
Regularly inspect the connection for signs of loosening or corrosion, especially in systems subject to frequent thermal expansion and contraction. Ensure that compatible sealing materials, such as PTFE tape or pipe sealant, are used if required by your specific plumbing application.

## FAQ

### How much does the TDM Brass 121E 1 Lock-Nut 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 — 139 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 Thursday 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/12505170/68845941_large.webp