National Marker N274407 Security Chain Door Guard

Product Description

The National Marker N274407 is a satin chrome security chain door guard designed to allow a door to open partially while keeping the entry secured. Built from steel construction, this chain fastener mounts to interior door frames and provides a low-cost security solution for residential applications including houses and apartments. The hardware ships one unit per pack and is suited for installation by general contractors, property maintenance technicians, or experienced DIYers working on door hardware.

This door guard is intended for residential use in houses, apartments, and similar dwelling units where a simple, economical chain-style security fastener is needed. It allows occupants to partially open a door to verify a visitor before fully releasing the latch. The satin chrome finish blends with standard interior door hardware.

Key Features

• Allows partial door opening for visual verification before full entry
• Steel construction for durable, everyday use
• Satin chrome finish compatible with common interior door hardware finishes
• Economical single-unit chain fastener for houses and apartments
• Compact and lightweight at 0.314 pounds

Compatibility

Designed as an OEM-style replacement or new-installation chain door guard for standard residential interior doors in houses and apartment units.

Installation Notes

Installation is typically performed by a general contractor or maintenance technician using basic hand tools such as a screwdriver. Mount the slide plate to the door and the chain receiver to the door frame, ensuring fasteners seat fully into solid wood or a backing block. Do not install into hollow door material without appropriate anchors. Verify door alignment before final fastener tightening to ensure smooth chain engagement.

Technical Specifications

• Material: Steel
• Finish: Satin Chrome
• Weight: 0.314 pounds
• Quantity: 1 per pack
• UPC: 00038613274402

Standard Information

• Brand: National Marker
• Manufacturer Part Number: N274407