Williams Comfort Products QZO66A Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QZO66A is an open-end torque wrench head designed for high-torque fastening applications in mechanical and industrial service work. Built to a 2.0625-inch open-end size with a Z-type shank measuring 0.990 inches, this head accepts drive input from a compatible torque wrench handle and delivers up to 480 foot-pounds of maximum torque. The center of fastener to retaining pin distance measures 5.75 inches, giving technicians the clearance needed for deep or offset fastener locations. Weighing 3.74 pounds, this is a robust, purpose-built tool head suited to trades where controlled torque on large fasteners is required.

This torque wrench head is used in applications requiring precise, high-torque tightening on large SAE fasteners. Typical install scenarios include heavy mechanical assemblies, flange connections, and large-bore pipe or equipment fittings where fastener torque must meet specification. It is appropriate for use by licensed mechanical contractors, pipefitters, and industrial maintenance technicians working on commercial or industrial systems.

Key Features

• 2.0625-inch open-end head size for large SAE fasteners
• Maximum torque rating of 480 foot-pounds
• Z-type shank with 0.990-inch shank size for compatible torque wrench handles
• 5.75-inch center of fastener to retaining pin distance for offset clearance
• Sold as individual unit

Compatibility

Designed for use with compatible Z-shank torque wrench handles accepting a 0.990-inch Z-type shank drive. Confirm handle-to-head shank compatibility before use.

Installation Notes

Installation and use of this torque wrench head should be performed by qualified mechanical or industrial technicians familiar with torque tool safety practices. Ensure the mating torque wrench handle is rated to accommodate the maximum torque output of this head before applying load. Inspect the shank and retaining pin interface for proper seating and security before each use. Follow applicable industry torque standards and equipment manufacturer specifications when tightening fasteners.

Technical Specifications

• Head Size: 2.0625 inches
• Head Type: Open End
• Shank Size: 0.990 inches
• Shank Type: Z
• Maximum Torque: 480 foot-pounds
• Center of Fastener to Retaining Pin: 5.75 inches
• Length: 7.68 inches
• Width: 4.14 inches
• Height: 0.83 inches
• Weight: 3.74 pounds
• Measurement Standard: SAE
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QZO66A