Williams Comfort Products QJRXS14A Torque Wrench Head 7/16

Product Description

The WILLIAMS COMFORT PRODUCTS QJRXS14A is a 7/16 inch flare nut torque wrench head designed for precision fastening in SAE applications. It features a 6-point contact geometry and accepts a J-type shank measuring 0.425 inches. The head is rated to a maximum torque of 42 ft-lb, making it suitable for controlled tightening of flare nut fittings in HVAC, refrigeration, and plumbing systems. This wrench head is used by licensed HVAC technicians and plumbers who need accurate torque application without rounding soft flare nut hex profiles. The compact size and defined torque limit reduce the risk of over-tightening on copper or brass fittings.

This torque wrench head is used in service and installation work where flare nut connections require torque control. Typical applications include refrigerant line connections, gas supply fittings, and hydraulic or fluid lines using SAE flare fittings. It is appropriate for both residential and light commercial service work. Technicians pair this head with a compatible torque wrench handle that accepts a J-type shank to achieve repeatable, code-consistent results on flare connections.

Key Features

• 7/16 inch flare nut head for SAE flare fittings
• 6-point contact geometry reduces fastener rounding
• J-type shank at 0.425 inches for compatible torque wrench handles
• Maximum torque rating of 42 ft-lb
• Compact profile suited for tight service spaces

Compatibility

Designed for use with J-type shank torque wrench handles; fits 7/16 inch SAE flare nut fittings in HVAC, refrigeration, and plumbing applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber familiar with flare fitting torque requirements. Ensure the system is depressurized and, where applicable, electrical power or gas supply is shut off before servicing connections. Use only a compatible J-type shank torque wrench handle to avoid damaging the shank interface. Do not exceed the 42 ft-lb maximum torque rating of this head.

Technical Specifications

• Head Size: 7/16 inches
• Head Type: Flare Nut
• Point Type: 6 Point
• Shank Type: J
• Shank Size: 0.425 inches
• Maximum Torque: 42 ft-lb
• Length: 1 inch
• Width: 3 inches
• Height: 1 inch
• Weight: 0.16 pounds
• UOM: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJRXS14A