Bar Stock | McMaster-Carr

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System of Measurement

Thickness

Width

Length

Diameter

Material

Tolerance Rating

Performance

Specifications Met

CPSC Compliant 16 CFR 1201 Category I and II

NACE MR0175/ISO 15156

OSHA Compliant 29 CFR 1926.701

SAE Standard

State of California Standard

U.S. Congressional Act

Fabrication

Temper Designation

Outside Width

Wall Thickness

Appearance

Certificate Type

Material Certificate with Traceable Lot Number

Material Certificate with Traceable Lot Number and Cure Date

Material Certificate with Traceable Lot Number and Test Report

Outside Height

Hardness Rating

Mechanical Finish

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

51,219 Products

Raw Materials

Aluminum

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

5,569 products

Steel

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

7,636 products

Stainless Steel

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

5,622 products

Plastic

A lightweight alternative to metal and glass

8,915 products

Copper

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

960 products

Brass

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

894 products

Bronze

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

874 products

Titanium

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

203 products

Garolite

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

1,991 products

Fiberglass

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

442 products

Foam

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

2,662 products

Nickel

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

330 products

Tungsten

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

281 products

Ceramic

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

625 products

Rubber

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

6,100 products

Carbon Fiber

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

318 products

Zinc

Draws corrosion away from nearby metal; an alternative to lead for sound barriers and vibration dampers

41 products

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

234 products

Lead

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

93 products

Glass

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

332 products

Wax

Create seals and prototypes, lubricate tools, and polish equipment

41 products

Aramid

Strong, lightweight, and an excellent thermal insulator; also known as Nomex

10 products

Graphite

Compressible or conductive for making high-temperature seals, furnace parts, and crucibles

80 products

Gold

Form into electronic components that won't corrode—all with material certificates for traceability

4 products

Carbon

An electrical conductor that’s often used in electronics and sensors

19 products

Cobalt

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

8 products

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

904 products

Molybdenum

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

57 products

Tin

Soft and malleable for forming gaskets and filters; also mixes with other metals to make solder

10 products

Platinum

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

22 products

Hard Fiber

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

79 products

Kevlar

Super tough for protection against prolonged wear and abrasion

11 products

Mica

An electrical insulator that resists high temperatures; use in circuit breakers and heating elements

199 products

Tantalum

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

23 products

Niobium

Conductive and corrosion resistant even at extreme temperatures—all with material certificates for traceability

14 products

Fastening and Joining

Machine Key Stock

Cut a custom length to transfer torque from shafts to components such as gears and sprockets

824 products

Machine Keys

Transmit torque from rotating shafts to gears, sprockets, and other machine parts

799 products

Dowel Pin Stock

Cut to the length you need for positioning and holding parts in place

53 products

Solder

Join pieces of metal without melting the base material

16 products

Power Transmission

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion

1,762 products

Linear Shafts

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

1,318 products

Idler Shafts

Support idler sprockets and pulleys in tensioning applications

28 products

Spur Gear Stock

Machine your own gears to an exact face width and shaft diameter

18 products

Timing Belt Pulley Stock

Machine your own timing belt pulleys to fit an exact width and shaft diameter

17 products

Gear Box Shafts

Convert output drives from female to male

10 products

Fabricating and Machining

Casting Metals

Melt and pour into molds to make metal parts and prototypes

19 products

Prototyping Foam

Carve, mill, or sand into lightweight parts for testing

27 products

Dovetail Blanks

Machine a blank workpiece with precut dovetails and locating slots for easy setup

5 products

Lathe Tool Blanks

Machine custom lathe tool bits

48 products

Building and Machinery Hardware

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

124 products

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

434 products

Weld-Together Framing and Fittings

Permanently join rails and fittings to assemble heavy duty racks, shelving, and work tables

41 products

Clamp-On Framing Rails

Build assembly stations, conveyors, and racks that can be modified without dismantling them

25 products

Sealing

Backer Rods

Insert into gaps before caulking to reduce how much sealant you need and improve adhesion

35 products

Facility and Grounds Maintenance

Rebar

Reinforces concrete to reduce the chance it will crack from expansion and contraction

9 products

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products

Steel Hat Channel

Creates space for insulation inside walls and ceilings

2 products