foscoconnect.com
sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Proto J4772A 1/4" Drive Universal 6-Point Joint Socket, 5/16"
The Proto J4772A is a high-performance 1/4-inch square drive, 5/16-inch 6-point universal joint socket. Manufactured from durable alloy steel with a corrosion-resistant chrome finish, this standard flex socket is designed to provide access to hard-to-reach fasteners at varying angles. It incorporates Proto's proprietary TorquePlus™ configuration, utilizing a radius-corner design that effectively shifts the contact area and operational stress away from the fastener corners. This minimizes fastener rounding and makes the socket ideal for use on stubborn, damaged, or soft-material fasteners.
Key Features
- TorquePlus™ Design: Radius-corner configuration minimizes fastener rounding by shifting stress away from corners, maximizing torque application.
- Universal Joint (Flex) Configuration: Provides increased accessibility for difficult-to-reach or angled fasteners.
- Durable Construction: Crafted from high-strength alloy steel for industrial reliability.
- Corrosion Resistance: Finished in polished chrome for extended tool life, durability, and easy cleanup.
Technical Specifications
| Manufacturer | Proto |
|---|---|
| Model | J4772A |
| Drive Size | 1/4 in. |
| Socket Size | 5/16 in. |
| Socket Type | Standard Flex / Universal Joint |
| Point Count | 6-Point |
| Overall Length | 1-1/4 in. |
| Material | Alloy Steel |
| Finish | Chrome |
Frequently Asked Questions
- What is the total length of the Proto J4772A socket?
- The overall length of this universal joint socket is exactly 1-1/4 inches.
- Why does this socket use a TorquePlus configuration?
- The TorquePlus radius-corner design shifts the contact stress away from the points of the fastener, significantly reducing the chance of rounding and improving engagement on damaged or soft fasteners.