Prime Line Products Sp 9633 Extension Spring 7/16 in Od 3-pack

Product Description

The PRIME LINE PRODUCTS SP 9633 is a single loop extension spring designed for general handyman and light mechanical applications. Constructed from durable spring steel with a nickel-plated finish, this spring delivers reliable tension and corrosion resistance in both indoor and outdoor environments. Key dimensional specs include a 7/16-inch outside diameter, 11/32-inch inside diameter, and 8-1/2-inch length. The wire diameter measures 0.047 inches, the maximum safe load is 8.47 pounds, and maximum deflection reaches 9.3 inches. It is sold in a package of three units.

This extension spring is suited for residential and light commercial maintenance tasks where a compact, corrosion-resistant tension spring is needed. Common applications include screen doors, cabinet hardware, tool holders, exercise equipment, and general mechanical assemblies. The nickel-plated finish allows the spring to be used in damp or outdoor-exposed locations without significant degradation. Installers, facilities technicians, and handymen working on maintenance or repair projects will find this a practical off-the-shelf solution.

Key Features

• Spring steel construction for consistent tension and long service life
• Nickel-plated finish provides corrosion resistance for indoor and outdoor use
• Single loop ends for straightforward hook attachment
• Maximum safe load of 8.47 pounds with 9.3-inch maximum deflection
• Sold as a 3-pack for convenience on multi-point or repeat installations

Compatibility

Designed as a general-purpose single loop extension spring suitable for a wide range of residential and light commercial mechanical applications requiring a 7/16-inch OD extension spring.

Installation Notes

Extension springs store energy under tension and should be handled carefully during installation to prevent accidental release. Ensure the attachment points are rated to handle the spring load before securing. Standard hand tools are sufficient for most installations. Always verify the mounting hooks or anchor points are fully engaged before placing the spring under load.