Clamp Collars | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Shaft Diameter For Shaft Diameter

	Construction Construction


Two Piece	One Piece

Hinged

	Material Material

	Finish Finish

	For Shaft Type For Shaft Type


Round	Keyed

Threaded	Square

D-Profile	Round with Support Rail

Hex	Acme Lead Screw

	Width Width

	Shaft Mount Type Shaft Mount Type


Clamp On	Set Screw

	OD OD

	Clamping Screw Material Clamping Screw Material

Steel

Stainless Steel

	Number of Clamping Screws Included Number of Clamping Screws Included

	Clamping Screw Finish Clamping Screw Finish

Black Oxide

Zinc Plated

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

RoHS Compliant

RoHS Compliant with
Exemptions

	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 Shaft Thread Size For Shaft Thread Size

	Set Screw Material Set Screw Material

Steel

Stainless Steel

	Keyway Width Keyway Width

	Number of Set Screws Included Number of Set Screws Included

	For Shaft Width For Shaft Width

	Thread Size Thread Size

	Keyway Depth Keyway Depth

	Mounting Hole Thread Size Mounting Hole Thread Size

2,971 Products

About Shaft Collars

Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.

Clamping Two-Piece Shaft Collars

Set Screw Two-Piece Shaft Collars

Tighten the set screw to bite into an unhardened shaft for a secure hold.

Shaft Collars

To install, slide these one-piece collars onto the end of your shaft.

Hinged Shaft Collars

Offering the benefits of a two-piece collar in a one-piece design, these collars swing open for positioning then close anywhere on your shaft.

Mountable Shaft Collars

Mounting holes or weldable materials allow you to fasten gears, pulleys, and sprockets to these collars.

Threaded Shaft Collars

Square Shaft Collars

Install these two-piece collars square shafts.

D-Profile Shaft Collars

Support-Rail Shaft Collars

Designed to fit onto shafts that have a support rail running underneath them, these collars can be used as end-stops for linear motion components.

Hex Shaft Collars

Quick-Release Shaft Collar Handles

These threaded handles take the place of a set screw, allowing you to move set screw shaft collars without additional tools—useful for when the collar serves as a stroke limiter or mounting clamp.

Threaded-Rod-Mount Clamping Hangers

Clamping hangers fit close around material to provide a tighter hold than loop hangers. Use with a single line of pipe, tubing, and conduit.

Lead Screw Collars

Install these threaded collars on a lead screw to separate and position components, or use them as an end stop to limit travel.