Apex HC-100-5/8 Specialty Socket 3/8 in Drive Sae

Product Description

The APEX HC-100-5/8 is a specialty socket designed for precision fastener work requiring a female square spline drive interface. Built to SAE standards, it accepts a 3/8 inch drive and features a 0.625 inch spline size. The overall length measures 1.75 inches, making it a compact tool suited for tight-access applications. This socket is used by licensed trades and industrial maintenance technicians working on HVAC equipment, motors, pumps, and mechanical systems that use non-standard fastener configurations. The female square drive design accommodates square-drive fasteners that standard hex sockets cannot engage.

This socket fits into maintenance and service workflows wherever square-drive fasteners are present. Common applications include motor shaft fasteners, equipment panels, and specialty mechanical assemblies found in commercial HVAC systems, plumbing equipment, and industrial machinery. Its compact 1.75 inch overall length allows use in areas with limited clearance around fastener heads. Technicians performing field service or bench repairs on trade equipment will find this socket addresses fastener types not covered by a standard socket set.

Key Features

• 3/8 inch drive size compatible with standard 3/8 inch drive ratchets and extensions
• 0.625 inch female square spline for non-standard square-drive fasteners
• SAE dimensioned for use in applications with inch-standard hardware
• Compact 1.75 inch overall length for use in confined spaces
• Female square drive geometry engages fastener types that hex sockets cannot

Compatibility

Designed as an OEM-style specialty socket for use with 3/8 inch drive ratchets, extensions, and torque wrenches where a 0.625 inch female square spline interface is required.

Installation Notes

This socket is installed by HVAC technicians, plumbers, electricians, and general maintenance trades using standard 3/8 inch drive tooling. Before servicing any equipment, de-energize electrical systems and relieve any stored pressure per applicable safety procedures. Use appropriate torque tooling and do not exceed the rated capacity of the 3/8 inch drive. Inspect the socket for wear or damage before each use.