Square Bars | McMaster-Carr

Filter by

System of Measurement

Thickness

Width

Shape

Length

Material

Diameter

Performance

Tolerance Rating

Fabrication

Hardness

Hardness Rating

Color

Specifications Met

CPSC Compliant 16 CFR 1201 Category I and II

Backing Type

Appearance

RoHS

Compliant with Exemptions

Maximum Temperature

REACH

DFARS Specialty Metals

Outside Width

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

Yes

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

Yield Strength

Less than 10,000 psi

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

Not Rated

Export Control Classification Number (ECCN)

Minimum Temperature

18,700 Products

Raw Materials

Steel

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

1,067 products

Stainless Steel

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

2,835 products

Aluminum

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

2,925 products

Brass

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

290 products

Plastic

A lightweight alternative to metal and glass

2,566 products

Copper

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

489 products

Rubber

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

5,418 products

Bronze

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

223 products

Titanium

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

82 products

Tungsten

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

20 products

Ceramic

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

232 products

Garolite

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

823 products

Foam

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

758 products

Fiberglass

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

187 products

Nickel

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

76 products

Cobalt

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

1 product

Glass

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

80 products

Carbon Fiber

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

71 products

Graphite

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

18 products

Aramid

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

3 products

Zinc

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

4 products

Mica

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

145 products

Tin

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

8 products

Carbon

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

18 products

Lead

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

63 products

Hard Fiber

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

62 products

Niobium

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

6 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

Weld-Together Framing and Fittings

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

26 products

Press-Fit Framing Rails

Set up temporary partitions, guards, and displays using only a hammer

43 products

Fabricating and Machining

Dovetail Blanks

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

5 products

Prototyping Foam

Carve, mill, or sand into lightweight parts for testing

8 products

Electrical Power, Networking, and Controlling

Thermal Interface Pads

Soft and flexible, so they conform to rough surfaces and fill gaps between two surfaces

24 products