Proto J4710N Hand Socket 5/16 in 12-point 1/4 in Drive

Product Description

The PROTO J4710N is a 5/16 inch, 12-point hand socket designed for use with 1/4 inch drive ratchets, extensions, and speed handles. Built from chrome-plated steel, it meets ASME B107.110-2012, AS4984A, and SAE AS954G standards for hand socket performance. The standard-length profile measures 1-15/64 inches overall, making it well suited for fastener access in confined spaces. Licensed mechanics, HVAC technicians, plumbers, and general service trades reach for this socket when working on equipment panels, access covers, and mechanical assemblies secured with 5/16 inch hex fasteners. The chrome finish resists corrosion and simplifies cleaning after use.

This socket fits standard 1/4 inch drive tooling and is appropriate for both residential service calls and light commercial maintenance work. The 12-point contact pattern allows engagement at 30-degree intervals, which helps when swing arc is limited inside equipment enclosures or near structural obstructions. It is a single-piece, non-tethered socket rated for hand-tool torque loads consistent with 1/4 inch drive applications. Trades working on HVAC equipment cabinets, electrical panel knockouts, plumbing access covers, and similar fastener-intensive service tasks will find the compact dimensions practical for everyday use.

Key Features

• 5/16 inch socket size with 12-point contact pattern for 30-degree engagement increments
• 1/4 inch drive compatible with standard ratchets, extensions, and adapters
• Chrome-plated steel construction meets ASME B107.110-2012, AS4984A, and SAE AS954G standards
• Standard-length profile at 1-15/64 inches overall for use in confined fastener locations
• Lifetime warranty from PROTO

Compatibility

Designed for use with standard 1/4 inch drive hand-tool systems including ratchets, sliding T-handles, extensions, and universal joints conforming to ASME B107.110-2012 drive tolerances.

Installation Notes

This socket is intended for hand-tool use only with 1/4 inch drive equipment. Do not use with impact drivers or pneumatic tools, as the chrome finish and standard-duty construction are not rated for impact loads. Verify the fastener size before applying torque to avoid rounding the fastener head. Follow applicable service documentation for the equipment being serviced.