National Mfg N178-814 Aluminum Knob Latch 3-pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N178-814 is an aluminum knob latch designed for screen and storm doors in residential applications. It installs on wood or metal door frames and accommodates three common hole spacings: 1-1/2 inches, 1-3/4 inches, or 3 inches. This versatility makes it a practical stocking item for contractors and service technicians who work across multiple door brands and frame configurations. Each package contains 3 units. The aluminum construction keeps weight low while providing corrosion resistance suited to exterior door hardware applications.

This latch is intended for wood or metal screen doors and storm doors where a standard knob-style latch mechanism is required. The multi-hole-spacing compatibility means a single SKU covers a wide range of door frame configurations, reducing the need to stock multiple part numbers. It is appropriate for both new installation and replacement work on residential screen and storm door assemblies.

Key Features

• Aluminum construction for corrosion resistance in exterior door applications
• Compatible with 1-1/2 inch, 1-3/4 inch, and 3 inch hole spacings
• Fits both wood and metal screen and storm door frames
• Knob-style latch mechanism for straightforward operation
• Sold in a package of 3 units per pack

Compatibility

Designed as an OEM-style replacement or new-installation latch for wood or metal screen and storm doors with hole spacings of 1-1/2 inches, 1-3/4 inches, or 3 inches.

Installation Notes

Installation is typically performed by a general contractor, handyman, or experienced DIYer. Power tools are not required; a standard drill and screwdriver are sufficient for most installations. Confirm hole spacing on the door frame before installation to select the correct mounting position. Follow all applicable local building codes for exterior door hardware.