Midwest Fasteners Multi-Size Steel Extension Springs

Midwest Fasteners Multi-Size Steel Extension Springs

Midwest Fasteners Steel Extension Springs are designed for applications that require a dependable pulling-force return, from mechanical assemblies to everyday maintenance repairs. This product family spans 39 distinct spring sizes, giving you a wide selection to match on outside diameter, wire diameter and overall length. Outside diameters range from 3/16" up to 1-3/8", wire diameters run from .020" to .11", and overall lengths span from 3/4" to 10-1/2", all manufactured from steel for consistent tension and long-term durability. This broad range makes it practical to source replacement or build-ready extension springs for a variety of mechanical return-tension needs from one family. Whether you are replacing a worn spring or sourcing one for a new build, choose the exact size from this range that matches your stretch, length and load requirements.

Key Features

• Size Range: Available in 39 sizes, with outside diameters from 3/16" to 1-3/8", wire diameters from .020" to .11", and free lengths from 3/4" to 10-1/2".
• Material: Steel construction provides dependable tension and a stable return-to-length response.
• Type: Extension spring design stretches under load and pulls back to its original length when the pulling force is released, ideal for return-action mechanisms.
• Size Selection: With 39 size options in this family, you can match outside diameter, wire diameter and length to the exact replacement or build requirement.
• Consistent Construction: Every size in this steel extension spring family is manufactured to the same material standard, so tension and feel stay consistent across the range.

Technical Specifications

• Product Type: Extension Spring
• Product Material: Steel

Typical Applications

• Garage door assemblies and return mechanisms
• Trampolines and recreational equipment
• Screen and storm door closers
• General equipment and machinery maintenance repair
• Toggle and latch mechanisms requiring return tension

Why Midwest Fasteners?

Midwest Fasteners manufactures this extension spring family from steel to a consistent standard across all 39 available sizes, so tension, coil quality and finish stay predictable no matter which size you select. Having a single source that spans outside diameters from 3/16" to 1-3/8", wire diameters from .020" to .11", and lengths from 3/4" to 10-1/2" makes it easier to find an exact match for repair, replacement or new-build work. For maintenance techs and fabricators who need dependable return-tension springs on hand, this steel extension spring lineup from Midwest Fasteners delivers consistent sizing and material quality size after size.