Square Steel Tubing | McMaster-Carr

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Post Width

Fabrication

Bolt-Together Framing Component

Mounting Foot

Rail

Telescoping Rail

Steel Grade

1005-1026 Low-Carbon Steel

1010 Low-Carbon Steel

A500 Low-Carbon Steel

A513 Low-Carbon Steel

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Strut Channel Type

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Compliant with Exemptions

Not Compliant

REACH

Compliant

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Export Control Classification Number (ECCN)

2B999

9A991

EAR99

DFARS Specialty Metals

Finish

Rail Width

Bracket Type

90° Angle with Threaded Stud

1,001 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

773 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