Ball Bearing Screws | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

	Thread Pitch Thread Pitch

	Length Length

	Component Component

	Ball Screw
	Ball Nut
	End Support
	Ball Screw with One Machined End

	Material Material

Steel

Stainless Steel

	Head Type Head Type


Headless	Thumb

	Thread Direction Thread Direction


Right Hand	Left Hand

	Travel Distance per Turn Travel Distance per Turn

	Nut Type Nut Type


Flange	Externally Threaded

Platform

	Tip Material Tip Material

Steel

Stainless Steel

	Tip Diameter Tip Diameter

	Hardness Hardness

	Thread Spacing Thread Spacing

Coarse

Ultra Fine

	Root Diameter Root Diameter

	Threading Threading

	Fully Threaded
	Partially Threaded

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

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	Number of Thread Starts Number of Thread Starts

	Size Size

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Thread Fit Thread Fit

Class 2A

Class 3A

Class 6g

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

REACH Compliant

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375 Products

Selecting Compatible Lead Screws and Nuts

Metric Alloy Steel Ball-Point Set Screws

These metric set screws have a rolling ball that swivels 360° to minimize surface damage and allow for slight adjustments without loosening the screw.

Alloy Steel Ball-Point Set Screws

A rolling ball swivels 360° to minimize surface damage and allow for slight adjustments without loosening the screw.

Stainless Steel Ball-Point Set Screws

Stainless steel set screws have excellent corrosion resistance in most environments.

Ultra-Fine-Thread Ball-Point Set Screws

Fine threads give you precise control.

Ultra-Fine-Thread Plastic-Head Thumb Screws

Fine threads give you precise control.

Lead Screws and Screw Jacks

Ball Screws and Nuts

Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts.

Fast-Travel Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start.

Self-Stopping Ball Screws and Nuts

Keep your ball screw spinning without the ball nut damaging your system. When the ball nut reaches the stop pin at either end of the ball screw, it disengages and begins to idle.

Fast-Travel Corrosion-Resistant Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start.

Corrosion-Resistant Ball Screws and Nuts

Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts.

Metric Ball Screws and Nuts

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start metric ball screws and nuts, these have a single thread that runs the length of the screw.

End Supports for Lead Screws and Ball Screws

A set of ball bearings reduces friction and secures the end of a ball or lead screw.

Metric End Supports for Lead Screws and Ball Screws

A set of ball bearings reduces friction and secures the end of a metric ball or lead screw.

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Selecting Compatible Lead Screws and Nuts

Screws and Bolts

Metric Alloy Steel Ball-Point Set Screws

Alloy Steel Ball-Point Set Screws

Stainless Steel Ball-Point Set Screws

Ultra-Fine-Thread Ball-Point Set Screws

Ultra-Fine-Thread Plastic-Head Thumb Screws

Lead Screws and Screw Jacks

Ball Screws and Nuts

Fast-Travel Ball Screws and Nuts

Self-Stopping Ball Screws and Nuts

Fast-Travel Corrosion-Resistant Ball Screws and Nuts

Corrosion-Resistant Ball Screws and Nuts

Metric Ball Screws and Nuts

End Supports for Lead Screws and Ball Screws

Metric End Supports for Lead Screws and Ball Screws