Precision Stock | McMaster-Carr

Filter by

System of Measurement

Thickness

Length

Material

Shape

Width

Diameter

Tolerance Rating

Mechanical Finish

Hardness

Performance

Electrical Insulating

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

Hardness Rating

Heat Treatment

Specifications Met

Fabrication

Certificate Type

Accuracy Certificate Traceable to NIST

Maximum Temperature

Yield Strength

20,000 psi to 29,999 psi

30,000 psi to 99,999 psi

100,000 psi to 199,999 psi

200,000 psi or greater

Minimum Temperature

Help me decide (beta)

15,600 Products

Raw Materials

Steel

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

2,613 products

Aluminum

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

1,117 products

Stainless Steel

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

1,144 products

Bronze

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

82 products

Lead

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

12 products

Tungsten

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

212 products

Brass

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

10 products

Nickel

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

19 products

Plastic

A lightweight alternative to metal and glass

134 products

Garolite

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

12 products

Ceramic

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

65 products

Fastening and Joining

Shim Stock

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

1,260 products

Shims

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

4,170 products

Measuring and Inspecting

Surface Plates

Extremely flat to give an accurate reference plane for layout and inspection work

51 products

Surface Plate Stands

Hold up surface plates at precise support points to maintain accuracy

16 products

Power Transmission

Linear Shafts

Pair with linear bearings and shaft supports to create smooth, precise motion

1,314 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

18 products

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

8 products

Compression Springs

When squeezed, springs push back to their original length

175 products

Disc Springs

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

16 products

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

972 products

Fabricating and Machining

Core Pins

Add to molds and pour in plastic to form holes in finished parts

1,274 products

Ejector Sleeves

Use with mold pins to form holes, bosses, and other features in parts

39 products

Ejector Pins

Push finished parts out of molds

361 products

Ejector Blades

Flat end pushes thin-walled parts out of molds better than ejector pins

106 products

Punch Pins

Use with press dies to punch 1/8" and larger holes; modify to fit your application

30 products

Fluid Handling

Tubing

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

392 products

Filter Mesh

Strain particles out of various substances

9 products

Perforated Sheets

Filter, sort, separate, and strain liquid or dry material

2 products