Anti Backlash Ball Nuts | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Thread Type Thread Type

Rounded Acme

Metric Rounded
Trapezoidal

Ball

Metric Ball

Metric Trapezoidal

	Component Component

	Nut
	Lead Screw
	Ball Nut
	Ball Screw
	Ball Screw with One Machined End

	Length Length

	Nut Type Nut Type


Flange	Externally Threaded

Platform	Round

	Travel Distance per Turn Travel Distance per Turn

	Material Material

	Thread Direction Thread Direction


Right Hand	Left Hand

	Number of Thread Starts Number of Thread Starts

	Threading Threading


Fully Threaded	Partially Threaded

	Diameter Diameter

	Speed Ratio Speed Ratio

	Hardness Hardness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Tensile Strength Tensile Strength

100,000 psi or greater

Not Rated

	Flange Material Flange Material

Plastic

Steel

Stainless Steel

	Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity

10,000 lbs. or greater

Not Rated

	Number of Mounting Holes Number of Mounting Holes

	Root Diameter Root Diameter

	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

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389 Products

Selecting Compatible Lead Screws and Nuts

Ultra-Precision Lead Screws and Nuts

Also known as single-start and self-locking lead screws and nuts, these have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest.

Fast-Travel Ultra-Precision Lead Screws and Nuts

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

Metric Fast-Travel Ultra-Precision
Lead Screws and Nuts

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

Metric Ultra-Precision Lead Screws and Nuts

Metric Precision Lead Screws and Nuts

Also known as trapezoidal-thread lead screws and nuts.

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.

Selecting Compatible Lead Screws and Nuts

Precision Lead Screws and Nuts

Ultra-Precision Lead Screws and Nuts

Fast-Travel Ultra-Precision Lead Screws and Nuts

Metric Fast-Travel Ultra-PrecisionLead Screws and Nuts

Metric Ultra-Precision Lead Screws and Nuts

Metric Precision Lead Screws and Nuts

Ball Screws and Nuts

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

Metric Fast-Travel Ultra-Precision
Lead Screws and Nuts