Hollow Structural Sections | McMaster-Carr

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2,871 Products

Raw Materials

Steel

Strong, machinable, and weldable but lacks corrosion resistance

Aluminum

Lightweight, easy to machine, and corrosion resistant in wet environments

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments

Plastic

A lightweight alternative to metal and glass

Brass

More machinable than copper and bronze for making nuts, hinges, and locks

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

Bronze

With better wear resistance than copper and brass, it’s used for bearings, gears, and pump parts

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

Copper

The most conductive of our metals, it excels in all types of electrical applications

Titanium

The most corrosion-resistant metal we offer, with very high strength relative to its weight

Building and Machinery Hardware

Weld-Together Framing Rails

Weld-Together Framing Rails

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

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

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

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

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

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

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

Slip-On Framing and Fittings

Slip-On Framing and Fittings

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

Flush-Fit Framing Rails

Flush-Fit Framing Rails

Join flush-fit framing rails to build smooth stair and platform railings

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)