Hillman Fasteners 540012 Compression Spring No. 4 12 Pack

Product Description

The HILLMAN FASTENERS 540012 is a No. 4 compression spring sold in a 12-pack, packaged in a poly bag for clean storage and dispensing. Compression springs resist axial loads and return to their original length when the load is released. This spring follows a standard coil design manufactured from durable steel, making it suitable for general-purpose mechanical applications where reliable spring force is needed. Trade professionals and maintenance technicians reach for this spring when replacing worn or failed compression springs in equipment, fixtures, and assemblies across a range of industries.

The 540012 compression spring is suited for residential, commercial, and light industrial maintenance scenarios. Its standard No. 4 designation makes it a common fit for general repair and replacement work in HVAC equipment, plumbing fixtures, electrical enclosures, and other mechanical assemblies that require a conventional compression spring. The 12-pack quantity is practical for service technicians who need multiple units on hand for recurring repairs or to stock a service vehicle.

Key Features

• Standard coil compression spring design for conventional axial-load applications
• Constructed from durable steel for reliable performance across repeated compression cycles
• Sold in a 12-pack poly bag for easy storage and inventory management
• General-purpose sizing suitable for a variety of mechanical repair and replacement applications

Compatibility

Designed as a general-purpose OEM-style replacement compression spring for mechanical assemblies, fixtures, and equipment that require a standard No. 4 compression spring.

Installation Notes

Compression spring replacement is typically performed by maintenance technicians or trade professionals servicing mechanical assemblies. Always de-energize or shut down the equipment before removing or installing springs to prevent injury from stored mechanical energy. Use appropriate hand tools and eye protection when compressing or seating the spring, as sudden release can cause injury. Verify spring size and load requirements against the original equipment specification before installation.