National Mfg N235-002 Door Gate Spring Size 4 Zinc 10-pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N235-002 is a Size 4 door and gate spring made from zinc-finished steel, designed for use in residential and light commercial gate and door applications. This spring provides controlled, automatic closing action on hinged gates and doors, maintaining consistent return force over repeated cycles. Sold in a bulk pack of 10 units, the N235-002 suits contractors and maintenance crews who need reliable stock on hand for multi-unit installs or ongoing service work.

This spring is suited for installation on wood, vinyl, or metal gate frames and standard residential doors where an automatic closing mechanism is required. The Size 4 designation indicates its load rating and physical dimensions, making it appropriate for medium-weight gate and door panels. It is commonly installed by fencing contractors, general contractors, and maintenance technicians in residential fencing, pool enclosures, and light commercial access points.

Key Features

• Zinc finish provides corrosion resistance for outdoor gate and door use
• Size 4 rating suited for medium-weight door and gate panels
• Automatic closing action maintains consistent return force over time
• Bulk pack of 10 units supports multi-unit installs and stocking efficiency
• Compact form factor fits standard hinge and gate hardware configurations

Compatibility

Designed as an OEM-style replacement or new-installation spring for residential and light commercial hinged doors and gates requiring a Size 4 automatic closing spring.

Installation Notes

Installation is typically performed by fencing contractors or general maintenance technicians using standard hand tools. Ensure the door or gate panel is properly supported and the frame is plumb before mounting the spring to avoid binding or uneven tension. Follow local building codes for gate hardware in pool enclosure or safety barrier applications, as self-closing gate requirements may apply. Inspect mounting hardware and frame condition before installation to confirm adequate load-bearing capacity.