Williams Comfort Products JHW3540M Service Wrench 40MM

Product Description

The WILLIAMS COMFORT PRODUCTS JHW3540M is an ultra-thin pattern service wrench designed for work on jam nuts and fasteners in confined or restricted spaces. Built with a 30-degree offset head, it allows technicians to achieve the clearance needed where standard wrenches cannot reach. The wrench has a 40 MM opening and an overall length of 7.9 inches. The Satin-Chrome finish resists corrosion and provides a professional, low-glare surface. This tool meets Federal Specification GGG-W-636E Type 17-Class 3, making it suitable for demanding service environments.

This wrench is well suited for plumbing, HVAC, and general mechanical service applications where jam nuts or tight access points are common. The ultra-thin head profile makes it especially useful in panel interiors, valve assemblies, and other areas where tool clearance is limited. Licensed tradespeople and experienced service technicians will find it a reliable hand tool for both installation and maintenance tasks.

Key Features

• Ultra-thin head pattern for jam nut service and confined-area access
• 30-degree offset head for improved clearance and torque application
• 40 MM jaw opening accommodates large fasteners and fittings
• Satin-Chrome finish for corrosion resistance and low glare
• Meets Federal Specification GGG-W-636E Type 17-Class 3

Compatibility

Designed as a general-purpose service wrench for use with 40 MM fasteners and jam nuts across plumbing, HVAC, and mechanical service applications.

Installation Notes

This wrench is intended for use by qualified trade professionals in hand-tool applications. Always ensure the jaw is fully seated on the fastener before applying torque to avoid rounding. Inspect the tool for wear or damage before each use. Store in a dry location to maintain the Satin-Chrome finish.

Technical Specifications

• Jaw Opening: 40 MM
• Overall Length: 7.9 inches
• Width: 2.7 inches
• Height: 0.4 inches
• Weight: 0.54 pounds
• Finish: Satin-Chrome
• Head Offset: 30 degrees
• Federal Specification: GGG-W-636E Type 17-Class 3
• UOM: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW3540M