Steel Square Tubing | McMaster-Carr

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Material

Base Material

System of Measurement

Outside Width

Outside Height

Wall Thickness

Shape

Length

Inside Width

Outside Corner Shape

Inside Height

Width

Inside Corner Shape

Thickness

Specifications Met

ANSI/MSS SP-58 Type 23

ASTM Standard

EN Standard

Fed. Spec. WW-H-171 Type 23

IEC 61340-5-1

SAE AMS-T-6736

Yield Strength

Less than 30,000 psi

30,000 psi to 32,999 psi

33,000 psi to 39,999 psi

40,000 psi to 59,999 psi

60,000 psi or greater

Appearance

Fabrication

Rail Type

Bolt-Together Framing Component

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

2B999

9A991

EAR99

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Steel Grade

1005-1026 Low-Carbon Steel

1010 Low-Carbon Steel

A500 Low-Carbon Steel

A513 Low-Carbon Steel

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How can we improve?

2,326 Products

Raw Materials

Steel

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

141 products

Stainless Steel

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

68 products

Building and Machinery Hardware

Bolt-Together Framing Rails

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

38 products

Bolt-Together Framing Structural Brackets

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

27 products

Bolt-Together Framing Feet

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

6 products

Bolt-Together Framing Fasteners

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

15 products

Bolt-Together Framing Hinges

Add doors, lids, and machine guards to bolt-together framing

2 products

Bolt-Together Framing Casters

Thread through bolt-together framing rails to roll structures where you need them

1 product

Weld-Together Framing and Fittings

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

25 products

Strut Channel Framing and Fittings

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

1,493 products

T-Slotted Framing and Fittings

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

483 products

Press-Fit Framing and Fittings

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

11 products

Locking-Slotted Framing and Fittings

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

3 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products