Williams Comfort Products QZSD24A Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QZSD24A is a fixed square drive torque wrench head designed for high-torque fastening applications in industrial and trade service environments. Built around a 3/4 inch drive, it accepts standard 3/4 inch drive torque wrenches and delivers up to 480 ft-lb of maximum torque. The Z-type shank measures 0.990 inches in diameter, providing a secure, positive engagement with compatible torque wrench handles. This head is sold as an individual unit and is intended for use by mechanics, millwrights, and maintenance technicians who require precise, repeatable torque application on large fasteners.

This torque wrench head is suited for heavy-duty fastening tasks in commercial, industrial, and maintenance settings where 3/4 inch drive tooling is standard. Typical applications include structural bolting, large mechanical assemblies, and equipment maintenance requiring controlled torque above what 1/2 inch drive systems can reliably deliver. Its fixed square drive configuration keeps the tool simple and reliable in demanding shop or field conditions.

Key Features

• 3/4 inch drive size for compatibility with standard heavy-duty torque wrench handles
• Fixed square drive head type — no moving parts, straightforward engagement
• Maximum torque rating of 480 ft-lb for high-load fastening applications
• Z-type shank with 0.990 inch shank diameter for secure handle fit
• SAE specification for use with inch-measurement fasteners
• Compact profile: 7.29 inches length, 1.38 inches width, 1.97 inches height

Compatibility

Designed as a replacement or supplemental torque wrench head for use with 3/4 inch drive torque wrench handles accepting a Z-type shank configuration in SAE applications.

Installation Notes

Installation of this torque wrench head is performed by qualified mechanics or maintenance technicians. Ensure the torque wrench handle is fully de-loaded and set to zero before attaching or removing the head. Verify the Z-type shank seats completely and locks securely in the handle before applying torque. Follow applicable industry torque standards and fastener manufacturer specifications when performing torque procedures.

Technical Specifications

• Drive Size: 3/4 inch
• Head Type: Fixed Square Drive
• Shank Type: Z
• Shank Size: 0.990 inches
• Maximum Torque: 480 ft-lb
• Specification: SAE
• Length: 7.29 inches
• Width: 1.38 inches
• Height: 1.97 inches
• Weight: 0.85 pounds
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QZSD24A