Zinc Plated U-Bolts | McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	ID ID

	Inside Width Inside Width

2 1/8"

3 1/8"

	Height Height

	Finish Finish	Show

Zinc Plated

	Finish Finish	Hide

	Material Material

Steel

	Center-to-Center Center-to-Center

	For Pipe Size For Pipe Size

1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12
14
16
18

	Thread Length Thread Length

	Leg Diameter Leg Diameter

	Nut Material Nut Material

Steel

	Includes Mounting Plate Includes Mounting Plate

Yes

	Mount Type Mount Type

	Threaded

	Number of Nuts Included Number of Nuts Included

	Capacity Capacity

4,000 lbs. or greater

Not Rated

	Nut Style Nut Style

Hex Nut

Serrated-Flange Locknut

Nylon-Insert Locknut

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

RoHS Compliant

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

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

REACH Compliant

	For Rigid Conduit Trade Size For Rigid Conduit Trade Size

	Mounting Plate Material Mounting Plate Material

Steel

Plastic

	Washer Material Washer Material

Steel

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285 Products

Selecting U-Bolts Using Pipe, Conduit, or Tubing Trade Size

U-Bolts

Mount these general purpose U-bolts into an existing bracket, or combine with a mounting plate for a secure hold at the mounting surface.

U-Bolts with Mounting Plates

A mounting plate provides a more secure hold at the mounting surface.

U-Bolt Mounting Plates

Add a mounting plate to your U-bolt for a more secure hold at the mounting surface.

Square U-Bolts

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

Clamping U-Bolts

Also known as muffler clamps, these U-bolts have a rounded mounting plate that fully surrounds pipe, conduit, and tubing for a secure fit.

Vibration-Damping U-Bolts

Reduce vibration and noise in your lines—a plastic cushion tightly grips pipe, tubing, and conduit to prevent movement. Nylon-insert locknuts grip the thread to resist loosening.

Rubber-Cushioned Square U-Bolts

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