Williams Comfort Products QZO64A Torque Wrench Head 2 in

Product Description

The WILLIAMS COMFORT PRODUCTS QZO64A is a 2-inch open-end torque wrench head designed for high-torque fastening applications in industrial and mechanical service environments. The head accepts a Z-type shank with a 0.990-inch shank diameter, providing a secure drive connection for use with compatible torque wrench handles. Maximum torque capacity is 480 ft-lb, making it suitable for heavy-duty bolted joint work. The center-of-fastener to retaining pin measurement is 5.75 inches. This type of tooling is used by millwrights, pipefitters, and heavy equipment technicians who need controlled torque on large fasteners in confined or offset locations.

Open-end torque wrench heads are used when a standard box or socket configuration cannot access the fastener, such as on pipe flanges, structural connections, or large-diameter fittings. The SAE sizing on this head targets inch-standard fasteners. The 2-inch opening accommodates large hex fasteners common in industrial piping, heavy machinery, and structural steel assembly. This is a single-piece head unit sold individually.

Key Features

• 2-inch open-end head for large SAE hex fasteners
• Maximum torque rating of 480 ft-lb for heavy-duty applications
• Z-type shank with 0.990-inch shank diameter for positive drive engagement
• Center-of-fastener to retaining pin distance of 5.75 inches
• Compact profile at 0.79 inches height for use in tight clearance situations

Compatibility

Designed for use with torque wrench handles that accept a Z-type shank drive connection. Verify shank compatibility with your existing torque wrench handle before installation.

Installation Notes

This head is installed and removed by a qualified mechanic or torque tooling technician. Ensure the torque wrench handle is rated to meet or exceed the 480 ft-lb maximum torque of this head before use. Confirm the shank seats fully and the retaining pin is engaged before applying torque. Never apply torque beyond the rated capacity of the head or the connected handle.

Technical Specifications

• Head Size: 2 inches
• Head Type: Open End
• Shank Size: 0.990 inches
• Shank Type: Z
• Maximum Torque: 480 ft-lb
• Center of Fastener to Retaining Pin: 5.75 inches
• Length: 7.88 inches
• Width: 4.02 inches
• Height: 0.79 inches
• Weight: 2.87 pounds
• Standard: SAE
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QZO64A