National Mfg N100-040 Heavy Duty Aluminum Door Closer

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N100-040 is a heavy-duty, air-controlled door closer built for out-swinging wood or metal doors up to 1-3/8 inches thick. The unit is constructed from aluminum and features a fully adjustable closing speed, giving installers precise control over door movement in residential and light commercial applications. A 2-hole end plug allows the closing force to be regulated on-site without specialty tools. The closer is permanently lubricated at the factory, extending service life and reducing maintenance requirements. A hold-open washer is included for added convenience during installation and daily use.

This door closer is suited for out-swinging entry doors in residential and commercial settings where controlled, consistent door closure is required. It is appropriate for wood-frame and metal-door applications where door thickness does not exceed 1-3/8 inches. General contractors, carpenters, and facilities maintenance professionals commonly install this type of hardware on exterior entry points, service doors, and utility access doors where code-compliant or operationally required self-closing function is needed.

Key Features

• Air-controlled closing mechanism with fully adjustable closing speed
• 2-hole end plug for on-site regulation of closing force
• Compatible with out-swinging wood or metal doors up to 1-3/8 inches thick
• Aluminum construction for corrosion resistance and reduced weight
• Permanently lubricated for extended operating life with minimal maintenance
• Includes hold-open washer for installation convenience

Compatibility

Designed as a heavy-duty replacement or new-installation door closer for out-swinging wood or metal doors up to 1-3/8 inches thick in residential and light commercial applications.

Installation Notes

Installation is typically performed by a general contractor, carpenter, or facilities maintenance technician using standard hand tools. Disconnect or secure the door from traffic before beginning installation. Follow the mounting template provided with the unit to ensure proper arm alignment and door clearance. Verify door thickness does not exceed 1-3/8 inches before installation to ensure correct fitment and function.