Acme Threaded Rods | McMaster-Carr

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	Thread Type Thread Type

Acme

Metric Rounded
Trapezoidal

Metric Trapezoidal

Rounded Acme

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Component Component

	Collar
	Handle
	Hex Head Screw
	Lead Screw
	Nut

	Material Material

	Length Length

	Thread Direction Thread Direction

	Right Hand
	Left Hand
	Right Hand and Left Hand

	Nut Type Nut Type


Hex	Coupling

Flange	Round

Externally Threaded	Square

Platform	Thumb

	Threading Threading


Fully Threaded	Partially Threaded

	Travel Distance per Turn Travel Distance per Turn

	Number of Thread Starts Number of Thread Starts

	Tensile Strength Tensile Strength

	Speed Ratio Speed Ratio

	Thread Fit Thread Fit

Class 2C

Class 2G

	Hardness Rating Hardness Rating

	Fastener Strength Grade/Class Fastener Strength Grade/Class

	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

	Thread Pitch Thread Pitch

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

REACH Compliant

	Specifications Met Specifications Met

ASTM

DIN

	Diameter Diameter

	Height Height

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1,752 Products

Selecting Compatible Lead Screws and Nuts

Acme Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects.

Metric Lead Screws and Nuts

These metric lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. They're commonly found in hand-powered clamps, vises, grates, doors, and work tables.

Precision Acme 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 Precision Acme 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 Precision Lead Screws and Nuts

Also known as trapezoidal-thread lead screws and nuts.

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.

Ultra-Precision Lead Screws and Nuts

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

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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Selecting Compatible Lead Screws and Nuts