Williams Comfort Products QZO44ADP Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QZO44ADP is an open-end torque wrench head engineered for high-load fastening applications requiring precision and control. This head features a dual-pin Z shank interface and an open-end design sized at 1.375 inches. It handles a maximum torque output of 480 foot-pounds, making it well suited for heavy-duty mechanical and industrial assembly work. The center-of-fastener to retaining-pin measurement is 5.75 inches, providing the clearance and leverage geometry required for consistent, repeatable torque application. Technicians working in mechanical, HVAC equipment assembly, or industrial maintenance will find this head compatible with standard CDI torque wrench drive systems.

This torque wrench head is appropriate for use in commercial and industrial settings where large fasteners require controlled torque application. The open-end configuration allows access to fasteners in confined or offset positions where a standard socket cannot seat fully. It is commonly used by mechanical technicians and equipment service professionals working on heavy machinery, large HVAC units, and structural mechanical assemblies that demand accurate high-torque fastening.

Key Features

• Open-end head design for access to fasteners in tight or offset locations
• Dual-pin Z shank for secure, positive engagement with compatible torque wrench handles
• Maximum torque capacity of 480 foot-pounds for heavy-duty applications
• 1.375-inch head size for large fastener compatibility
• 5.75-inch center-of-fastener to retaining-pin dimension for precise leverage geometry
• SAE sizing for use in standard domestic fastener applications

Compatibility

Designed for use with CDI torque wrench systems accepting a Z dual-pin shank interface. Confirm shank compatibility with your existing torque wrench handle before installation.

Installation Notes

Installation of this torque wrench head should be performed by a qualified mechanical technician familiar with torque tool systems. Ensure the torque wrench handle is fully depressurized and set to zero before attaching or removing the head. Verify the dual-pin shank is fully seated and retained before applying load. Follow applicable mechanical codes and equipment manufacturer guidelines for required torque values on the fasteners being serviced.

Technical Specifications

• Head Size: 1.375 inches
• Head Type: Open End
• Shank Type: Z Dual Pins
• Maximum Torque: 480 foot-pounds
• Center of Fastener to Retaining Pin: 5.75 inches
• Measurement Standard: SAE
• Length: 2.9 inches
• Width: 1.3 inches
• Height: 7.8 inches
• Weight: 1.81 pounds
• UPC: 0662459327628

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QZO44ADP