Square Tube Clamps | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Inside Width Inside Width

1 1/2"

2 1/8"

3 1/8"

	Thread Size Thread Size

	Material Material

Steel

Stainless Steel

Iron

	Finish Finish

Zinc Plated

Black Oxide

Galvanized

	Height Height

	Mount Type Mount Type


Threaded	Clamp On

Press Fit

	Center-to-Center Center-to-Center

	Clamp Type Clamp Type


C	Handscrew

Hold Down	Pipe

Plier

	Maximum Opening Maximum Opening

	For Suspending For Suspending


Threaded Rod	Pipe

Strut	Tie Wire

	Thread Length Thread Length

	For Beam Shape For Beam Shape


Flat	Tapered

Angled

	Beam Location Beam Location


Bottom-Center Mount	Bottom Mount

Top Mount

	Reach Reach

	Capacity Capacity

10,000 lbs. or greater

Not Rated

	Leg Diameter Leg Diameter

3/8"

7/16"

1/2"

	Mounting Location Mounting Location

Angle Iron

Beam

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Washer Material Washer Material

Steel

Stainless Steel

	For Shaft Width For Shaft Width

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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610 Products

U-Bolts

Square U-Bolts

Suspend and route flat-bottomed objects such as strut channel and small duct.

Rubber-Cushioned Square U-Bolts

Reduce vibration and prevent metal-to-metal corrosion on flat-bottomed objects such as strut channel and small duct.

Beam Clamps

Angle Iron Clamps for Threaded Rod

A secure way to hang threaded rod from a pair of angles, such as those used in ceiling joists, without the need to drill or weld. These clamps are commonly used to suspend HVAC, conveyor, and other overhead systems.

Perpendicular Beam-to-Beam Clamps

Add a crossbeam for hanging lifting equipment, creating overhead conveyor systems, and supporting structural applications.

Parallel Beam-to-Beam Clamps

Join two beams in a straight line.

Beam Clamps for Pipe, Tube, and Conduit

These clamps have a fixed hanger for rigid connections.

Easy-Position Beam Clamps
for Pipe, Tube, and Conduit

Suspend material at any angle from the beam. Clamps have a fixed jaw that secures to the beam and a hanger that swivels 360° to position material and accommodate for misalignment.

Sloped Beam Clamps for Threaded Rod

These clamps rotate 360° and pivot 45° to ensure the rod hangs straight, even on sloped beams.

Center-Mount Beam Clamps for Threaded Rod

For centered load distribution, these clamps grip both sides of the beam and hang threaded rod from the middle.

Beam Clamps for Threaded Rod

Attach these clamps to the flange of an beam, then hang a threaded rod from the threaded hole.

Press-Fit Beam Clamps for Threaded Rod

A toothed clip secures these clamps to the beam—no fasteners required.

Angled Beam Clamps for Threaded Rod

Also known as purlin clamps, these clamps are shaped to fit around beams that have a 45° or 90° lip.

Beam Clamps for Strut Channel

Support strut channel at a right angle to the beam.

Beam Clamps with Tie Wire Hanger

Attach these light duty hangers to beams and other structural elements. They include a stiff wire for supporting ceilings, lighting fixtures, and other lightweight material.

Beam Clamps for Hooks and Hangers

Clamp to both sides of a beam to add an anchor point for hoists and other overhead equipment.

Shaft Collars and Couplings

Square Shaft Collars

Install these two-piece collars square shafts.

Two-Piece Shaft Couplings

Install and remove these shaft couplings without disconnecting the shafts, motors, and other attached components—they’re made in two pieces so you don’t need to slide them onto shaft ends. They’re also useful when you have limited access to the ends of the shafts.

C-Clamps

Low-Profile C-Clamps

With no handle or protruding screw, these clamps can fit into tight spaces.

C-Clamps

Turn the handle to tighten these multipurpose tools for strong clamping in nearly any application.

Heavy Duty C-Clamps

These clamps have twice the capacity of standard C-clamps.

Extra Heavy Duty C-Clamps

With five times the capacity of standard C-clamps, these are the highest capacity clamps we offer.

Corrosion-Resistant C-Clamps

These clamps are made of stainless steel for excellent corrosion resistance.

High-Visibility C-Clamps

A bright finish makes these clamps easy to see.

Nonmarring C-Clamps

Plastic clamping surfaces prevent damage to material.

Nonsparking C-Clamps

All components of these clamps are made of aluminum-bronze that is Factory Mutual approved. They satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Lightweight Aluminum C-Clamps

Lighter weight than other metal clamps, these are less likely to bend thin material.

Nonconductive C-Clamps

Made entirely of fiberglass, these clamps won’t transmit electricity and are chemical resistant. They're often used around electrical equipment as well as in plating and anodizing applications.