Proto J5274A 7/16 Inch 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5274A is a 12-point hand socket designed for 3/8-inch drive ratchets and breaker bars. It fits a 7/16-inch fastener and is machined from alloy steel with a chrome-plated finish that resists corrosion and wipes clean easily. The 12-point design allows engagement at 30-degree increments, which is useful in tight spaces where swing arc is limited. At 0.12 pounds, this socket is lightweight and sized for everyday fastener work across automotive, mechanical, and general trade applications. It meets ASME B107.1 standards for hand socket dimensions and strength.

This socket suits residential and commercial service work where 7/16-inch fasteners appear regularly, including HVAC equipment panels, electrical enclosures, plumbing fixtures, and automotive assemblies. It is compatible with standard 3/8-inch drive ratchets, extensions, and universal joints. The chrome finish makes it appropriate for professional toolboxes where corrosion resistance and appearance matter. Licensed technicians and journeyman-level tradespeople will find this a reliable addition to a 3/8-inch drive socket set.

Key Features

• 12-point design allows 30-degree engagement increments for work in confined spaces
• Alloy steel construction meets ASME B107.1 dimensional and strength standards
• Chrome-plated finish resists corrosion and simplifies cleaning
• 3/8-inch drive fits standard ratchets, extensions, and universal joints
• Compact profile at 1.75 inches tall and 0.63 inches wide

Compatibility

Designed as an OEM-style replacement or direct addition for any 3/8-inch drive hand tool set requiring a 7/16-inch, 12-point socket.

Installation Notes

Hand sockets should be seated fully on the fastener before torque is applied to prevent rounding. Always power down or de-energize equipment before accessing fasteners on electrical or mechanical assemblies. Inspect the socket for cracks or wear before use, particularly on high-torque applications. This socket is intended for hand tool use only and is not rated for impact driver use.