Square Stock | McMaster-Carr

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Rectangular Tube

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Color

Fluorescent Amber

Fluorescent Blue

Fluorescent Green

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System of Measurement

Hardness Rating

Backing Type

Hardness

Diameter

Tolerance Rating

Fabrication

Specifications Met

CPSC Compliant 16 CFR 1201 Category I and II

Federal Specification

Outside Width

Maximum Temperature

Less than 500° F

500° F to 999° F

1,000° F to 1,999° F

2,000° F to 2,999° F

3,000° F or greater

Appearance

Texture

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Performance

Chemical Resistant

Corrosion Resistant

Easy Thermoform

Electrically Insulating

Erosion Resistant

Flame Resistant

High Temperature

Outside Height

Minimum Temperature

-250° F or less

-249° F to -200° F

-199° F to -100° F

-99° F to -1° F

Greater than 0° F

Steel Grade

1005-1026 Low-Carbon Steel

1006 Low-Carbon Steel

1006-1026 Low-Carbon Steel

1008 Low-Carbon Steel

1008-1010 Low-Carbon Steel

1010 Low-Carbon Steel

1010-1018 Low-Carbon Steel

1018 Low-Carbon Steel

A36 Low-Carbon Steel

How can we improve?

15,103 Products

Raw Materials

Steel

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

Aluminum

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

Stainless Steel

Stainless Steel

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

Plastic

A lightweight alternative to metal and glass

Brass

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

Rubber

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

Titanium

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

Bronze

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

Copper

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

Garolite

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

Foam

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

Carbon Fiber

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

Fiberglass

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

Ceramic

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

Tungsten

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

Cobalt

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

Aramid

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

Nickel

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

Graphite

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

Glass

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

Lead

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

Carbon

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

Zinc

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

Tin

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

Niobium

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

Building and Machinery Hardware

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

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

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

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

Fabricating and Machining

Lathe Tool Blanks

Lathe Tool Blanks

Machine custom lathe tool bits

Dovetail Blanks

Dovetail Blanks

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

Prototyping Foam

Prototyping Foam

Carve, mill, or sand into lightweight parts for testing

Fastening and Joining

Shim Stock

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

Shims

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

Machine Key Stock

Machine Key Stock

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

Sealing

Gasket Material

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

Electrical

Thermal Interface Material

Thermal Interface Material

Dissipate heat away from electronic components

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)