# Socket adapter 1/4" to 5/16" 12-point Unior 616874

**URL:** https://aio.lv/en/product--unior-616874--11729469
**Data updated:** 2026-03-08 11:33 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Unior
**Manufacturer code:** 616874
**EAN:** 3838909168746
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unior-616874--11729469

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Unior socket adapter 1/4" to 5/16" (MPN 616874, EAN 3838909168746) is a 12-point influence adapter designed to connect 1/4-inch drive tools to 5/16-inch sockets. It provides a secure 12-point engagement for torque transfer and is intended for use with hand ratchets, torque wrenches and socket sets in mechanical, automotive and assembly tasks.

## Long description

Unior socket adapter 1/4" to 5/16" 12-point is a compact drive adapter that enables the use of 5/16-inch sockets with 1/4-inch drive tools. Designed for hand ratchets, torque wrenches and socket sets, the adapter provides a 12-point engagement profile that supports reliable torque transfer and a secure fit between drive and socket. Constructed to meet typical workshop demands, it simplifies transitions between tool sizes without the need for additional adapters or separate socket sets.
Advantages
The 12-point configuration offers precise alignment and multiple engagement positions for easier access in confined spaces. Its compact form factor reduces interference when working near obstructions and allows quicker socket changes. The adapter ensures consistent torque transmission from a 1/4-inch drive to a 5/16-inch socket, offering compatibility across common hand tools while minimizing play or slippage.
Suitable for
Mechanical and automotive maintenance where mixed drive sizes are used
Assembly and disassembly of small fasteners with 5/16-inch sockets
Precision work with torque wrenches requiring a 1/4-inch drive
Key specifications
Drive conversion: 1/4-inch (male) to 5/16-inch (female)
Engagement type: 12-point
Application: hand ratchets, torque wrenches, socket sets
Form factor: compact adapter for tight access
How to use
Attach the male 1/4-inch end of the adapter to the drive tool until it seats securely, then fit the 5/16-inch socket onto the adapter's female end. Confirm a firm 12-point engagement before applying torque. Use steady, controlled force with hand tools and follow the torque limits of the tool and socket being used to avoid overloading. For torque wrenches, set the required torque value and apply force smoothly while maintaining alignment between tool, adapter and fastener.
Usage recommendations
Inspect the adapter and mating tools for wear or damage before each use. Use the adapter only within the rated capacity of the smallest component in the drive-socket assembly. Store in a dry toolbox to prevent corrosion and keep the engagement surfaces clean for reliable performance.

## FAQ

### How much does the Socket adapter 1/4"–5/16" Unior 616874 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 — 129 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 15.07.2026 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 Unior 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 Unior 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/11729469/67109547_large.webp