Proto J4772A Hand Socket 5/16 in 6-point 1/4 in Drive

Product Description

The PROTO J4772A is a 5/16-inch, 6-point hand socket designed for use with 1/4-inch drive ratchets and extensions. Built from alloy steel with a chrome-plated finish, it delivers solid corrosion resistance and a clean, professional appearance. The 6-point design provides full-face contact on hex fasteners, reducing the risk of rounding. At 1.25 inches overall length and 0.05 pounds, this compact socket is well suited for tight-access fastener work in mechanical, HVAC, plumbing, and electrical service applications. It meets ASME B107.1 standards for hand socket tools.

This socket is intended for professional hand-tool use in residential and light commercial service environments. The 1/4-inch drive size makes it a natural fit for low-torque applications such as control panel fasteners, access cover hardware, equipment mounting screws, and other small-diameter hex fasteners encountered in trade service work. It is sold individually and is compatible with any standard 1/4-inch drive ratchet, extension bar, or universal joint.

Key Features

• 5/16-inch socket size for common small hex fasteners in trade applications
• 6-point contact geometry reduces fastener rounding compared to 12-point designs
• 1/4-inch drive fits standard ratchets, extensions, and universal joints
• Alloy steel construction with chrome-plated finish for corrosion resistance
• Compact 1.25-inch overall length suits restricted-access installations
• Meets ASME B107.1 hand socket standards

Compatibility

Designed for use with any standard 1/4-inch drive ratchet, extension, or flex joint. Compatible with 5/16-inch 6-point hex fasteners in mechanical, electrical, HVAC, and plumbing service contexts.

Installation Notes

Installation and fastener service using this socket should be performed by a qualified tradesperson familiar with appropriate torque requirements for the fastener and assembly being serviced. Ensure the drive tool and socket are fully engaged before applying torque to prevent slippage or fastener damage. Inspect the socket for cracks or wear before each use, and do not use hand sockets with impact drivers unless the socket is specifically rated for impact use.