Williams Comfort Products QJRX20A Torque Wrench Head 5/8 Inch

Product Description

The WILLIAMS COMFORT PRODUCTS QJRX20A is a 5/8-inch flare nut torque wrench head designed for precise torque application on SAE flare fittings. Built with a 12-point configuration, it seats firmly on hex flare nuts to reduce fastener rounding during tightening. The J-type shank measures 0.425 inches and connects to compatible torque wrench handles. It handles a maximum torque of 60 ft-lb, making it suitable for refrigerant line connections and other flare nut assemblies found in HVAC and refrigeration systems. Technicians working on copper tubing flare joints will find this head a direct fit for standard service procedures.

This torque wrench head is intended for use in HVAC, refrigeration, and related trade applications where accurate torque on flare nut connections is required. It is appropriate for both residential and light commercial service work. Typical use cases include securing 5/8-inch flare fittings on refrigerant suction and liquid lines during system installation or component replacement. The SAE sizing makes it compatible with standard inch-based flare connections common in North American HVAC systems.

Key Features

• 5/8-inch flare nut head for SAE flare fitting applications
• 12-point design for firm engagement and reduced fastener wear
• J-type shank at 0.425 inches for torque wrench handle compatibility
• 60 ft-lb maximum torque rating for controlled tightening on flare joints
• Compact profile at 3.15 inches length and 0.21 pounds for easy handling in tight spaces

Compatibility

Designed for use with J-type torque wrench handles accepting a 0.425-inch shank. Fits standard 5/8-inch SAE flare nut connections typical in HVAC and refrigeration service work.

Installation Notes

This tool is used by licensed HVAC and refrigeration technicians during flare fitting installation and service. Always recover refrigerant and depressurize the system before working on flare connections. Ensure the wrench head is fully seated on the flare nut before applying torque to avoid rounding. Follow applicable mechanical and refrigeration codes for torque requirements on the specific fitting and tubing size in use.

Technical Specifications

• Head Size: 5/8 inches
• Head Type: Flare Nut
• Point Type: 12 Point
• Shank Size: 0.425 inches
• Shank Type: J
• Maximum Torque: 60 ft-lb
• Length: 3.15 inches
• Width: 0.99 inches
• Height: 0.39 inches
• Weight: 0.21 pounds
• Standard: SAE

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJRX20A