Coils | McMaster-Carr

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System of Measurement

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Spring Type

Material

Wire Diameter

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Straight Wire with Double Loop

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Compressed Length @ Maximum Load

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Threaded Insert Type

Shaft Diameter

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Compliant with Exemptions

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DFARS Specialty Metals

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Pipe Size

Export Control Classification Number (ECCN)

For Use With

Hole Diameter

Thread Type

Diameter

Installed Length

13,164 Products

Fluid Handling

Solenoid Coils

Replace the coil that actuates your flow-control valve

54 products

Tubing

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

365 products

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

208 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

Torsion Springs

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

565 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

Garter Springs

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

74 products

Rotor Springs

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

10 products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

1,548 products

MIG Welding Wire

Use with MIG welders to fuse metals together

182 products

Solder

Join pieces of metal without melting the base material

329 products

Brazing Alloys

Form stronger bonds between metal parts than solder without melting the base material

80 products

Raw Materials

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

121 products

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

86 products

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

282 products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

36 products

Brass

More machinable than copper and bronze—all with material certificates for traceability

12 products

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

16 products

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

12 products

Steel

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

215 products

Platinum

Formable and conductive while resisting extreme heat—all with material certificates for traceability

18 products

Tantalum

Conductive with a higher melting point than most metals—all with material certificates for traceability

5 products

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

12 products

Building and Machinery Hardware

Spring Handles

The wire coils dissipate heat to keep furnace, grill, and stove handles cool to the touch

21 products

Fabricating and Machining

Clamps

Hold workpieces securely in place

17 products

Electrical Discharge Machining Wire

Pair with wire-cutting EDM machines to erode and shape metal workpieces using electrical current

5 products

Band Saw Blade Coil Stock

Cut to length and weld the ends together to create band saw blades

70 products

Containers, Storage, and Furniture

Spools

Store twine, wire, rope, and chain

43 products

Electrical

Electrical Wire

Make single-wire connections; generally for lower voltages and shorter distances than cable

107 products

Material Handling

Box Stitching Wire

Refill electric box-bottom stitchers

2 products