Proto J5208S 1/4 Inch 8-point Hand Socket 3/8 Drive

Product Description

The PROTO J5208S is a 1/4-inch, 8-point hand socket designed for turning square nuts in mechanical and industrial service applications. Built from alloy steel with a chrome-plated finish, this standard-length socket fits a 3/8-inch square drive and measures 1-5/64 inches in overall length. The 8-point geometry engages square nut flats directly, reducing the risk of rounding during removal or installation. It meets ASME B107.1 standards for hand socket tools, making it appropriate for professional technicians working in HVAC, plumbing, electrical, and general mechanical trades.

This socket is intended for use wherever square-head fasteners are encountered — including equipment panels, valve packing nuts, and older mechanical assemblies common in HVAC and plumbing infrastructure. It is a standard-length socket, suitable for accessible fastener locations with adequate clearance. Professionals working on commercial and residential mechanical systems will find this socket useful when square-nut configurations appear on legacy or specialty equipment. It is sold individually and is not tether capable, making it a straightforward addition to a drive set rather than a tool-tethering program.

Key Features

• 8-point socket geometry designed specifically for 1/4-inch square nuts
• 3/8-inch square drive compatibility for use with standard ratchets and extensions
• Alloy steel construction with chrome-plated finish for corrosion resistance and durability
• Standard length at 1-5/64 inches overall for use in open, accessible fastener locations
• Meets ASME B107.1 hand socket tool standards

Compatibility

Designed for use with 3/8-inch drive ratchets, extensions, and torque wrenches. Intended for 1/4-inch square nuts per the 8-point socket geometry.

Installation Notes

Install and remove using a 3/8-inch drive ratchet or torque wrench. Ensure the fastener is fully seated in the socket before applying torque to avoid slippage on square-nut flats. Power down or de-energize any equipment before accessing fasteners on electrical enclosures or mechanical assemblies. This socket is not tether capable and should not be used in overhead or drop-hazard applications where tethered tools are required.