Threaded Precision Shafts

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

Acme

Rounded Acme

Metric Rounded
Trapezoidal

Metric Trapezoidal

	Diameter Diameter

	Length Length

	Material Material

	End Type End Type


Threaded	Made to Order

Straight	Tapped

With Retaining Ring Grooves	D-Profile

Keyed	Step Down

	Component Component


Lead Screw	Nut

Collar	Flange

	Thread Direction Thread Direction

	Right Hand
	Left Hand
	Right Hand and Left Hand

	Nut Type Nut Type


Round	Externally Threaded

Flange	Platform

	Number of Thread Starts Number of Thread Starts

	Mechanical Finish Mechanical Finish

Polished

Precision Ground

Turned

	Hardness Hardness

	Hardness Rating Hardness Rating

	Travel Distance per Turn Travel Distance per Turn

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Edge Type Edge Type


Chamfered	Straight

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Thread Length Thread Length

	For Motion Type For Motion Type

	Rotary
	Linear

	Speed Ratio Speed Ratio

	Heat Treatment Heat Treatment

Case Hardened

Hardened

Annealed (Softened)

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

REACH Compliant

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1,800 Products

Selecting Compatible Lead Screws and Nuts

Threaded Rotary Shafts

Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.

Thread-Mount Idler Rotary Shafts

Thread these shafts into a tapped hole to support idler sprockets and pulleys in tensioning applications. They have a retaining-ring groove, retaining ring, and spacers to position your component and hold it in place.

Flange-Mount Idler Rotary Shafts

Mount the flange to a machine or wall to support idler sprockets and pulleys in tensioning applications. They include washers and a nut to position your component and hold it in place.

Tapped Rotary Shafts

Connect these internally threaded shafts directly to threaded components, or use a fastener to secure.

Threaded Linear Motion Shafts

Mount these externally threaded shafts into tapped holes rather than using a shaft support, or attach a hex nut, shaft collar, or other threaded accessory.

Tapped Linear Motion Shafts

Internal threads allow you to mount these shafts onto threaded studs and fasteners, no shaft supports needed.

Lead Screws and Screw Jacks

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.