Square Steel Tubing | McMaster-Carr

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Outside Width

Outside Height

Wall Thickness

Shape

Length

Inside Width

Material

Inside Height

System of Measurement

Specifications Met

Thickness

Post Width

Yield Strength

Width

Steel Grade

1005-1026 Low-Carbon Steel

1010 Low-Carbon Steel

A500 Low-Carbon Steel

A513 Low-Carbon Steel

Fabrication

Seamless

Welded

Bolt-Together Framing Component

Rail Height

Rail Width

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

9A991

EAR99

DFARS Specialty Metals

For Use With

Bracket Type

90° Angle with Threaded Stud

Weld-Together Framing Component

604 Products

Raw Materials

Steel

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

141 products

Building and Machinery Hardware

Weld-Together Framing and Fittings

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

18 products

Bolt-Together Framing Rails

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

36 products

Bolt-Together Framing Feet

Stabilize bolt-together framing structures against floors, walls, and ceilings

5 products

Bolt-Together Framing Structural Brackets

Connect the surfaces and corners of bolt-together rails to build guards, tables, and racks

1 product

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

363 products

Press-Fit Framing and Fittings

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

7 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Electrical

Electrical Enclosure Mounting Channels

Position components inside electrical enclosures without drilling holes, which can leak

9 products

Fabricating and Machining

Strut Channel Cutters

Shear strut channel down to size using a die instead of a blade for safer, cleaner cuts

1 product