Spring Materials | McMaster-Carr

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System of Measurement

Length

Spring Type

Wire Diameter

Material

End Type

Straight Wire with Double Loop

Spring Rate

Shaft Diameter

Extended Length @ Maximum Load

Compressed Length @ Maximum Load

Thickness

Load

Hole Diameter

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Export Control Classification Number (ECCN)

Width

Minimum Load

Deflection Angle

Extended Length

Wire Thickness

Finish

Stroke Length

12,750 Products

Power Transmission

Compression Springs

When squeezed, springs push back to their original length

2,872 products

Extension Springs

As stretched, springs become increasingly harder to pull

4,746 products

Linear Wave Springs

Absorb vibration and fill in gaps along the length of an object

22 products

Die Springs

Withstand heavy loads with minimal compression in high-impact jobs such as punching and stamping

484 products

Strip Springs

Wrap around a shaft and extend to pull objects in a linear direction

77 products

Disc Springs

Maintain tension and separate components on shafts, under bolt heads, and at the ends of valves

1,680 products

Garter Springs

Exert radial force from all directions to maintain pressure on shafts or in seals

74 products

Torsion Springs

Wrap around a shaft or rod to maintain pressure on objects as they rotate

560 products

Spring Assortments

Keep extension, compression, and torsion spring types of various sizes on hand

7 products

Rotor Springs

Wind to store power, then release to create rotary motion—similar to winding a wristwatch

10 products

Gas Springs

Support the weight of doors, hatches, and lids to assist opening and closing

812 products

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

921 products

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

25 products

Fastening and Joining

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

112 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

296 products

Measuring and Inspecting

Force Gauges

Test objects to see how much tension and compression force they can bear

11 products

Building and Machinery Hardware

Bellows

Prevent dust and debris from damaging moving parts

8 products