Tube Extensions | McMaster-Carr

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Bolt-Together Framing Component

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Rail Height

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2B999

EAR99

DFARS Specialty Metals

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Thickness

Inside Height

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Zinc Yellow-Chromate Plated

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Outside Height

562 Products

Building and Machinery Hardware

Weld-Together Framing Rails

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

32 products

Clamp-On Framing Connectors

Two-piece design wraps around rails to modify structures without disassembling them

15 products

Clamp-On Framing Rails

Build assembly stations, conveyors, and racks that can be modified without dismantling them

8 products

Bolt-Together Framing and Fittings

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

81 products

Sealing

Caulk Gun Nozzles

Attach to caulk guns to change the shape and amount of sealant that's dispensed

2 products

Raw Materials

Aluminum

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

39 products

Brass

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

60 products

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

22 products

Fastening and Joining

Spring Button Clips

Join pieces of telescoping tubing using spring force

40 products

Gravity Pins

Slip through holes in telescoping tubing and wrap around to secure

1 product

Material Handling

Shipping Tubes

Protect rods, rolled-up blueprints, and other long, thin objects during shipping

259 products

Containers, Storage, and Furniture

Temporary Partition Poles

Support tarps, drop cloths, and plastic sheeting to create temporary walls that block dust

1 product