Williams Comfort Products QJRXS18A Torque Wrench Head 9/16 in

Product Description

The WILLIAMS COMFORT PRODUCTS QJRXS18A is a 9/16-inch flare nut torque wrench head designed for precise torque application on SAE fittings. It features a 6-point contact design and accepts a J-type shank measuring 0.425 inches. The head is rated for a maximum torque of 60 ft-lb, making it suitable for tightening flare connections on refrigerant lines, fuel lines, and hydraulic fittings where controlled torque is critical. HVAC technicians, plumbers, and mechanical tradespeople use this type of interchangeable wrench head with compatible torque wrench handles to meet manufacturer and code torque specifications during installation and service work.

This wrench head is suited for residential and light commercial HVAC and plumbing applications where SAE flare nut fittings require controlled torque. It is commonly used when connecting refrigerant line sets, fuel supply tubing, and similar flared tube fittings. The flare nut opening style provides full engagement around the fitting hex to reduce rounding during tightening. The compact head dimensions make it useful in confined spaces typical of equipment installations.

Key Features

• 9/16-inch flare nut opening for SAE fittings
• 6-point contact geometry reduces risk of rounding fastener flats
• J-type shank at 0.425 inches for compatibility with J-shank torque wrench handles
• Maximum torque rating of 60 ft-lb
• Compact profile at 2.95 inches long and 0.98 inches wide for use in tight spaces
• Lightweight at 0.37 pounds for easy single-hand use

Compatibility

Designed for use with J-type shank torque wrench handles. Fits SAE 9/16-inch flare nut fittings. Verify handle shank compatibility before use.

Installation Notes

Installation should be performed by a qualified HVAC technician, plumber, or mechanical tradesperson. Ensure the torque wrench handle is properly calibrated before use. Verify that the J-type shank seats fully and securely in the handle before applying torque. Do not exceed the 60 ft-lb maximum torque rating to avoid damaging fittings or the wrench head.

Technical Specifications

• Head Size: 9/16 inches
• Head Type: Flare Nut
• Point Type: 6 Point
• Shank Type: J
• Shank Size: 0.425 inches
• Maximum Torque: 60 ft-lb
• Length: 2.95 inches
• Width: 0.98 inches
• Height: 0.59 inches
• Weight: 0.37 pounds
• Standard: SAE

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJRXS18A