# Thread adapter BIG 428294 brass 3/8" (female) to 1/4" (male)

**URL:** https://aio.lv/en/product--big-428294--1945066
**Data updated:** 2025-12-29 07:57 (EET)
**Category:** Miscellaneous repair tools
**Manufacturer:** BIG
**Manufacturer code:** 428294
**EAN:** 4501914282941
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--big-428294--1945066

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.06.2026 | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary description

Thread adapter BIG 428294 is a brass fitting for converting a 3/8" thread to a 1/4" thread. Made of brass for corrosion resistance, it allows secure connection between components with differing thread sizes. Suitable for pneumatic, hydraulic or general workshop use where size conversion is required. Compact and durable for reliable sealing and repeated assembly.

## Long description

Thread adapter BIG 428294 is a brass fitting that converts a 3/8" female thread to a 1/4" male thread. Made of brass for corrosion resistance, it provides a compact and durable solution for joining components with different thread sizes in pneumatic, hydraulic or general workshop systems.
Advantages
The brass construction offers corrosion resistance and good mechanical strength. The adapter enables secure sealing and repeated assembly and disassembly without significant wear. Its compact size simplifies installation in confined spaces.
Suitable for
Pneumatic systems and air tools
Hydraulic equipment with compatible pressures
General workshop and maintenance tasks
Adapters between tools, hoses and fittings with 3/8" and 1/4" threads
Key specifications
Brand: BIG
Model / MPN: 428294
EAN: 4501914282941
Material: Brass
Connection: 3/8" (female) → 1/4" (male)
How to use
Thread the adapter into the component with the 3/8" female thread until hand-tight, then use an appropriate wrench to secure the connection without over-tightening. Attach the mating 1/4" male or female part to the adapter's 1/4" thread and tighten as required. Ensure threads are clean and, if necessary, apply suitable thread sealant or tape compatible with the system medium and pressure.
Usage recommendations
Verify compatibility of thread form and pressure ratings before use. Do not exceed the pressure limits of connected components and follow relevant safety practices for pneumatic or hydraulic systems.

## FAQ

### How much does the Thread adapter BIG 428294 3/8" to 1/4" cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 17.06.2026 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 BIG 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 BIG 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/1945066/51658222_large.webp