National Marker N176271 Heavy Gate Door Spring

Product Description

The NATIONAL MARKER N176271 is a heavy-duty gate and door spring built for demanding applications where a standard-weight spring falls short. Constructed from heavy-gauge spring steel with a zinc-plated finish, this spring resists corrosion and holds up under repeated compression and extension cycles. Looped ends are formed into the spring at both terminations, simplifying installation and reducing the need for additional hardware. It is catalog model No. 77BC and weighs 1.063 pounds. HVAC, construction, and general trades professionals will find this part suited for screen doors, storm doors, gates, and any project calling for an extra-heavy spring element.

This spring is designed for residential and light commercial applications involving gates, screen doors, and storm doors. It is also a practical choice for custom fabrication or repair projects that require a robust, high-tension spring component. The zinc plating provides a layer of protection against rust in outdoor and semi-exposed environments, making it appropriate for exterior door and gate hardware installations.

Key Features

• Heavy-gauge spring steel construction for extra-heavy duty tension and durability
• Zinc-plated finish for corrosion resistance in outdoor and semi-exposed installations
• Looped ends on both sides for straightforward attachment to door or gate hardware
• Suitable for gates, screen doors, storm doors, and custom heavy-spring projects
• Catalog model No. 77BC — a recognized standard reference for replacement sourcing

Compatibility

Designed as an OEM-style replacement or upgrade spring for residential and light commercial gates, screen doors, and storm doors requiring a heavy-duty spring component.

Installation Notes

Installation is performed by general contractors, carpenters, or qualified maintenance technicians. Before installing, ensure the door or gate is secured in a fixed position so the spring cannot create unexpected movement during attachment. Use appropriate pliers or spring installation tools to hook the looped ends onto mounting hardware without overstretching the spring. Verify that mounting anchor points are structurally sound and can bear the tension load of a heavy-duty spring before completing the installation.

Technical Specifications

• Material: Heavy-gauge spring steel
• Finish: Zinc-plated
• End Type: Looped ends
• Weight: 1.063 pounds
• UPC: 00038613176270

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N176271