Williams Comfort Products QZO40A Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QZO40A is an open-end torque wrench head designed for precision fastening applications where controlled torque delivery is critical. Built to a 1-1/4 inch open-end configuration with a Z-type shank measuring 0.990 inches, this head accepts standard torque wrench drives and delivers a maximum torque output of 480 foot-pounds. The center-of-fastener to retaining pin distance measures 5-3/4 inches, providing the reach needed for confined or offset fastener access. It is sold as an individual unit and suits mechanical, industrial, and trade service environments where accurate torque application is required.

This torque wrench head is suited for heavy-duty fastening tasks in SAE applications. Its open-end design allows engagement with fasteners in locations where a closed or box-end head cannot be used. Typical use cases include equipment assembly, large-diameter fitting installation, and service work on machinery where precise torque values must be met per specification. The Z-type shank provides positive retention in compatible torque wrench handles.

Key Features

• 1-1/4 inch open-end head for SAE fasteners
• Maximum torque capacity of 480 foot-pounds
• Z-type shank with 0.990-inch shank diameter for secure wrench handle engagement
• Center-of-fastener to retaining pin distance of 5-3/4 inches for extended reach
• Compact profile: 7.6 inches long, 2.56 inches wide, 0.99 inches in height
• Lightweight at 1.62 pounds for reduced user fatigue during extended use

Compatibility

Designed for use with compatible Z-type shank torque wrench handles accepting a 0.990-inch shank. Verify shank type and size against your torque wrench handle specification before installation.

Installation Notes

Installation and use should be performed by qualified mechanics or trade professionals familiar with torque wrench equipment and fastener specifications. Ensure the torque wrench handle is rated to meet or exceed the 480 foot-pound maximum torque of this head before use. Confirm positive seating and retention of the Z-type shank in the handle before applying load. Always follow the equipment manufacturer torque specifications and applicable industry standards when performing fastening work.

Technical Specifications

• Head Size: 1-1/4 inches
• Head Type: Open End
• Shank Size: 0.990 inches
• Shank Type: Z
• Maximum Torque: 480 foot-pounds
• Center of Fastener to Retaining Pin: 5-3/4 inches
• Length: 7.6 inches
• Width: 2.56 inches
• Height: 0.99 inches
• Weight: 1.62 pounds
• Standard: SAE
• Unit of Measure: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QZO40A