Williams Comfort Products QJSD8A Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QJSD8A is a fixed square drive torque wrench head designed for precise fastening applications in trade and industrial settings. Built around a 1/4 inch drive, this head accepts standard 1/4 inch drive sockets and delivers a maximum torque capacity of 60 foot-pounds. The J-type shank measures 0.425 inches and mates with compatible CDI torque wrench handles. Mechanics, HVAC technicians, plumbers, and electricians reaching for a dedicated torque head for tight-tolerance fastening will find this a reliable tool-side solution.

The QJSD8A is suited for light-duty to medium-duty fastening tasks where controlled torque application is required. Its compact fixed square drive configuration makes it practical for confined spaces common in HVAC equipment panels, plumbing fixture installations, and electrical panel work. The SAE rating indicates compatibility with standard inch-based fastener sizes typical in North American trade applications.

Key Features

• 1/4 inch fixed square drive for direct socket attachment
• Maximum torque rating of 60 foot-pounds for controlled fastening
• J-type shank at 0.425 inches for secure handle connection
• SAE specification for use with standard inch-based fasteners
• Compact profile at 0.7 inches length and 0.6 inches height for tight-space access

Compatibility

Designed as a replacement or supplemental torque wrench head for CDI torque wrench handles accepting a J-type shank configuration with a 0.425 inch shank diameter.

Installation Notes

Verify that the torque wrench handle is fully depressurized or set to its lowest torque setting before attaching or removing this head. Ensure the J-type shank seats completely and locks into the handle before applying load. Follow applicable torque specifications provided by the equipment or fastener manufacturer. This tool should be serviced or recalibrated according to the handle manufacturer guidelines to maintain torque accuracy.

Technical Specifications

• Drive Size: 1/4 inch
• Head Type: Fixed Square Drive
• Shank Type: J
• Shank Size: 0.425 inches
• Maximum Torque: 60 foot-pounds
• Standard: SAE
• Length: 0.7 inches
• Width: 3 inches
• Height: 0.6 inches
• Weight: 0.14 pounds
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJSD8A