Threaded Collars | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Shaft Thread Size For Shaft Thread Size

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Thread Type Thread Type

	Material Material

Steel

Stainless Steel

	Construction Construction

One Piece

Two Piece

	For Shaft Type For Shaft Type


Threaded	Acme Lead Screw

	OD OD

	Width Width

	Clamping Screw Material Clamping Screw Material

Steel

Stainless Steel

	Thread Direction Thread Direction

Right Hand

Left Hand

	Nut Type Nut Type


Round	Locknut

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

RoHS Compliant

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

REACH Compliant

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Number of Clamping Screws Included Number of Clamping Screws Included

	Finish Finish

Black Oxide

Zinc Plated

	For Spanner Wrench Style For Spanner Wrench Style

	Hook
	Pin

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Face Style Face Style

Chamfered

Stepped

	Specifications Met Specifications Met

DIN

ISO

ANSI/ABMA

	Clamping Screw Thread Size Clamping Screw Thread Size

447 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.

Threaded Shaft Collars

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

Threaded Two-Piece Shaft Collars

Install these collars anywhere on a shaft without removing components or having access to the ends of the shaft.

Bearing Retaining Locknuts

With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place.

Bearing Retaining Jam Nuts

Used in pairs or with another bearing retaining nut, these jam nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle.

Bearing Retaining Nuts

Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle.

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw.

Two-Piece Clamping Acme Lead Screw Collars

Mount these two-piece collars anywhere on an Acme lead screw without removing components.

Metric Clamping Lead Screw Collars

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

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