Proto J5670 Universal Joint 3/4 in Male 3/4 in Female 4 in

Product Description

The PROTO J5670 is a universal joint designed for use with 3/4 inch male and 3/4 inch female drive connections. It provides flexible torque transfer between socket wrenches and drive tools when working at angles where a straight extension will not fit. The overall length is 4 inches. This joint meets ANSI Spec B107.10M and Federal Spec GGG-W-641e, making it suitable for professional and government-specification tooling applications. Licensed mechanics, industrial maintenance technicians, and trade professionals install this type of joint as part of a socket drive set when working in confined or offset spaces.

Universal joints like the J5670 are used across automotive, HVAC, plumbing, and industrial maintenance applications wherever a direct-line drive approach is obstructed. The 3/4 inch drive size targets heavy-duty fastening tasks, including large-diameter bolted connections on commercial HVAC equipment, pipe flanges, and structural assemblies. It is sold individually and fits into standard 3/4 inch drive socket sets.

Key Features

• 3/4 inch male and 3/4 inch female drive connections for standard 3/4 inch drive compatibility
• 4 inch overall length provides clearance for offset and angled fastening tasks
• Meets ANSI B107.10M specification for hand socket wrenches and attachments
• Meets Federal Specification GGG-W-641e for government and contract work requirements
• Sold as a single unit with no minimum order beyond one piece

Compatibility

Designed as a standard 3/4 inch drive universal joint compatible with 3/4 inch drive socket sets and extension bars conforming to ANSI B107.10M specifications.

Installation Notes

Install and remove universal joints by hand or with a light press fit using appropriate drive tools. Always ensure the drive square is fully seated before applying torque to avoid rounding the connection. Inspect the joint for wear or binding before each use, as a damaged universal joint can slip under load. No power tools, heat, or cutting operations are required or recommended for installation.