Pucks | McMaster-Carr

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System of Measurement

Diameter

Shape

Length

Material

Tolerance Rating

Hardness Rating

Performance

Electrically Insulating

Hardness

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

Compliant with Exemptions

Fabrication

Maximum Temperature

REACH

Export Control Classification Number (ECCN)

Specifications Met

NACE MR0175/ISO 15156

SAE Standard

U.S. Congressional Act

Minimum Temperature

Color

Yield Strength

10,000 psi to 19,999 psi

20,000 psi to 99,999 psi

100,000 psi to 199,999 psi

200,000 psi or greater

Appearance

Heat Treatment

Elongation

Heat Treatable

Mechanical Finish

7,630 Products

Raw Materials

Steel

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

2,715 products

Aluminum

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

434 products

Plastic

A lightweight alternative to metal and glass

1,359 products

Stainless Steel

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

1,131 products

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

313 products

Lead

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

16 products

Brass

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

166 products

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

83 products

Copper

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

148 products

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

142 products

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

312 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

191 products

Bronze

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

225 products

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

61 products

Tungsten

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

198 products

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

8 products

Cobalt

Resists impact and rapid temperature changes—all with material certificates for traceability

3 products

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

29 products

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

60 products

Fluid Handling

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

7 products

RTD Transmitters

Send temperature readings from RTD probes in containers, tanks, and pipes to switches and PLCs

2 products

Fastening and Joining

Solder

Join pieces of metal without melting the base material

8 products

Facility and Grounds Maintenance

Deodorizers

Eliminate odors in everything from trash cans and bathrooms to machine coolant and wastewater

1 product

Measuring and Inspecting

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

5 products

Building and Machinery Hardware

Padlocks

Shackle objects together, such as a door and its frame, to prevent theft or unauthorized entry

10 products