Metal Square Tubing | McMaster-Carr

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Material

System of Measurement

Length

Outside Width

Rail Height

Outside Height

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T-Slotted Framing Rail Profile

Bracket Type

90° Angle with Threaded Stud

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Inside Height

Outside Corner Shape

Rail Width

Finish

Thickness

Strut Channel Type

T-Slotted Framing Component

RoHS

Compliant with Exemptions

Thread Size

REACH

Export Control Classification Number (ECCN)

Inside Corner Shape

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Strut Channel Framing Component

Offset-Surface Bracket

Outlet Box

Outlet Cover

Panel-Mounting Bracket

Rail Style

I-Slotted/Single Flanged

2,690 Products

Raw Materials

Steel

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

77 products

Aluminum

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

116 products

Stainless Steel

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

61 products

Brass

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

11 products

Building and Machinery Hardware

Bolt-Together Framing Rails

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

49 products

Bolt-Together Framing Structural Brackets

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

43 products

Bolt-Together Framing Fasteners

Secure bolt-together framing rails and brackets or anchor mounting feet in concrete

17 products

Bolt-Together Framing Feet

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

7 products

Bolt-Together Framing Panel Hangers

Install panels on bolt-together framing rails to create guards and partitions

1 product

Bolt-Together Framing Floor Mounts

Install bolt-together rails into the ground

2 products

Bolt-Together Framing Braces

Reinforce joined corners of bolt-together framing rails to keep them from twisting

2 products

Weld-Together Framing and Fittings

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

40 products

Strut Channel Framing and Fittings

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

928 products

Press-Fit Framing and Fittings

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

77 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

1,211 products

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

12 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

Electrical

Electrical Enclosure Mounting Channels

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

9 products

Material Handling

Beam Clamps

Secure lines of pipe and duct, overhead equipment, and lighting fixtures to beam flanges

9 products

Pipe Supports

Brace pipe, tube, and conduit that needs to be routed between studs or elevated off the floor

9 products