Steel Structural Tubing | McMaster-Carr

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Material

Shape

System of Measurement

Wall Thickness

Length

Outside Width

Outside Height

Inside Width

Outside Corner Shape

Fabrication

Specifications Met

ANSI/MSS SP-58 Type 23

OSHA Compliant 29 CFR 1926.451

Width

Thickness

Inside Height

Yield Strength

20,000 psi to 29,999 psi

30,000 psi to 39,999 psi

40,000 psi to 99,999 psi

100,000 psi or greater

Not Rated

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Thread Size

Performance

Rail Height

Strut Channel Type

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

3,473 Products

Raw Materials

Steel

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

584 products

Stainless Steel

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

349 products

Building and Machinery Hardware

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

79 products

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

22 products

Bolt-Together Framing and Fittings

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

88 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

Weld-Together Framing and Fittings

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

25 products

T-Slotted Framing and Fittings

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

563 products

Press-Fit Framing and Fittings

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

11 products

Locking-Slotted Framing Fasteners

Secure brackets and other accessories to locking-slotted rails

3 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Material Handling

Scaffold Clamps

Construct scaffolding and secure supports, such as railings

2 products

Trolleys

Transport hook-mount hoists along a beam for lifting and moving loads

5 products

Fastening and Joining

Weld Nuts

Weld to metal surfaces to add permanent threads

235 products