3 1/2" Springs | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Load Load

0.25-2.75 lbs.

	Finish Finish

Zinc Yellow-Chromate Plated

	For Shaft Diameter For Shaft Diameter

	Wire Thickness Wire Thickness

	Wire Width Wire Width

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263 Products

Springs

Compression Springs

Use these springs in noncorrosive environments.

Corrosion-Resistant Compression Springs

These springs are more corrosion resistant than standard compression springs.

Flanged Compression Springs

Flanges on the ends of these springs provide a flat mounting surface.

Extension Springs with Loop Ends

Use these steel springs in noncorrosive environments.

Corrosion-Resistant Extension Springs with Loop Ends

Made of stainless steel, these springs are more corrosion resistant than steel extension springs.

Mil. Spec. Extension Springs with Loop Ends

These steel springs meet MS 24586 and come with a traceable lot number and material test report.

Extension Springs with Hook Ends

Use these steel springs in noncorrosive environments.

Corrosion-Resistant Extension Springs with Hook Ends

Made of stainless steel, these springs are more corrosion resistant than steel extension springs.

Extension Springs with Special Ends

For specialty applications and connections, these springs have unique end types.

Color-Coded Die Springs

These springs follow the Raymond die spring color code.

Fasteners

Slotted Spring Pins

Also known as roll, tension, split, and expansion pins, these pins have a slot along one side that you squeeze closed to install them into unthreaded holes.

Vibration-Resistant Slotted Spring Pins

Interlocking teeth help these pins resist sliding when exposed to vibration. They have a slot that presses closed when the pins are inserted so they don't flex after installation.

Coiled Spring Pins

These spiral pins remain flexible after installation, so they absorb shock and vibration better than slotted spring pins. They work well in holes that are out of round.

Heavy Duty Coiled Spring Pins

For tough jobs, these spiral pins are 30% stronger than our standard coiled spring pins. They remain flexible after installation to absorb shock and vibration, and work well in holes that are out of round.

Wood Screw-Style Hangers

Drive these hangers into wood with an adjustable wrench, pliers, or a special driver bit.