N178-806 Screen & Storm Door Knob Latch, Zinc, Black

The National Hardware N178-806 is a keyed knob latch designed for screen and storm doors in residential applications. Whether your doors are wooden or metal, this zinc die-cast latch provides reliable security while accommodating a range of standard hole spacings. It combines one-handed operation with key-based security, making it an ideal choice for homeowners seeking both convenience and protection against drafts and unwanted entry.

This latch solves the common problem of securing screen and storm doors without requiring custom drilling or modifications. The dual locking design—with an exterior key lock and a separate interior locking mechanism—delivers enhanced security for high-traffic or windy areas. The corrosion-resistant black finish and included spring-loaded strike plate ensure reliable operation in outdoor conditions.

Features and Benefits

• Universal Hole Spacing: Fits door frames with 1-1/2 in, 1-3/4 in, or 3 in hole spacing, eliminating the need for custom drilling on most installations.
• Dual Locking Design: Exterior key lock combined with an interior locking mechanism provides layered security and enhanced protection.
• Zinc Die-Cast Construction: Heavy-duty zinc material with a black finish resists corrosion and withstands frequent use.
• Fits Doors 5/8 to 1-3/8 in Thick: Accommodates standard wood and metal door thicknesses for broad compatibility.
• Spring-Loaded Strike Plate: Included component ensures smooth and reliable latch operation.
• Easy Installation: Pre-drilled mounting holes and included matching screws allow quick setup with basic tools.

Specifications

• Brand: National Hardware
• Model: N178-806
• Material: Zinc die-cast
• Finish: Black
• Hole Spacing: 1-1/2 in, 1-3/4 in, or 3 in
• Door Thickness: 5/8 to 1-3/8 in
• Locking Design: Dual (exterior key lock and interior mechanism)
• Includes: Spring-loaded strike plate and mounting screws
• Key Type: Y11 key blank (N223-990 1308K)

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.