National Mfg N150-771 Zinc Chain Bolt 6 Inches

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N150-771 is a 6-inch zinc chain bolt designed to secure doors on industrial buildings, farm structures, warehouses, garages, and similar heavy-duty applications. The chain bolt provides a simple sliding-bar latch mechanism that reinforces door closures without requiring complex hardware. Mounting screws are included, so no additional fasteners are needed for a standard installation. This type of hardware is commonly specified by contractors, facilities maintenance personnel, and property managers who need a reliable, corrosion-resistant door security solution for utilitarian or commercial settings.

This chain bolt is suited for surface-mount installation on swinging doors in industrial, agricultural, and commercial environments. Typical applications include securing barn doors, warehouse bay doors, garage doors, and utility room entries. The zinc construction provides resistance to moisture and oxidation, making it appropriate for semi-exposed or high-humidity interior environments. The package quantity of 2 units allows for dual-door or multi-entry installations from a single purchase.

Key Features

• 6-inch zinc chain bolt for heavy-duty door security applications
• Zinc construction resists corrosion and oxidation in demanding environments
• Mounting screws included for straightforward installation
• Package quantity of 2 units per package
• Suitable for industrial buildings, farm structures, warehouses, and garages

Compatibility

Designed as a surface-mount door security bolt for swinging doors in industrial, agricultural, warehouse, and garage settings where a sliding chain bolt latch is the specified hardware type.

Installation Notes

Installation is typically performed by a general contractor, carpenter, or facilities maintenance technician using basic hand tools. Power down or de-energize any electrically operated door hardware in the vicinity before beginning work on the door frame. Ensure the door surface is clean and structurally sound before mounting to achieve full holding strength. Follow local building codes for door hardware requirements in commercial or agricultural occupancies.