National Mfg N172-114 Adjustable Door Gate Spring

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N172-114 is a zinc adjustable door and gate spring designed for residential and light commercial gate and door closure applications. Tension is adjusted via a threaded shaft, allowing installers to fine-tune closing force without replacing the spring or adding additional hardware. The spring ships with fasteners included and is packaged on a card for point-of-sale or shop storage. It is suitable for jobs requiring spring sizes 3 through 6, covering a broad range of door and gate weights and frame configurations.

This spring is used in fence gate, screen door, and light exterior door installations where a self-closing mechanism is required. The adjustable design makes it a practical single-SKU solution for contractors and service techs who need to cover multiple spring size requirements on a single job or service call. It is typically installed by general contractors, fence installers, or maintenance technicians working on residential or light commercial properties.

Key Features

• Zinc construction for corrosion resistance in outdoor gate and door applications
• Tension adjusted by threaded shaft for field-tunable closing force
• Replaces spring sizes 3 through 6 in a single adjustable unit
• Fasteners included — no separate hardware sourcing required
• Carded packaging suitable for shop inventory or resale
• Sold in a package quantity of 10 units

Compatibility

Designed as an OEM-style replacement or new-installation spring for door and gate assemblies requiring spring sizes 3 through 6.

Installation Notes

Installation is typically performed by fence contractors, general maintenance technicians, or experienced DIYers. Power tools are not required; standard hand tools are sufficient for fastener installation. Ensure the door or gate is properly aligned and the frame is structurally sound before installing the spring. Adjust tension via the threaded shaft incrementally and test closing action before completing installation.