12-24 Threaded Rods | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size	Show

12-24

	Thread Size Thread Size	Hide

	Diameter Diameter

	Length Length

	End Type End Type


Threaded	Straight

Made to Order	Tapped

Step Down	D-Profile

With Retaining Ring Grooves	Keyed

	Material Material

	Thread Length Thread Length

	Mechanical Finish Mechanical Finish

Polished

Precision Ground

Turned

	Edge Type Edge Type

	Chamfered

	For Motion Type For Motion Type

	Linear
	Rotary

	Hardness Rating Hardness Rating

Medium

Hard

Very Hard

	Hardness Hardness

	Heat Treatment Heat Treatment

Case Hardened

Hardened

Annealed (Softened)

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Yield Strength Yield Strength

35,000 psi

75,000 psi

85,000 psi

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Step Length Step Length

Made to Order

	Threading Threading

	Fully Threaded

	Surface Smoothness Surface Smoothness

9 microinch

	Surface Yield Strength Surface Yield Strength

200,000 psi

	Thread Type Thread Type

UNC

	Thread Direction Thread Direction

	Right Hand

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

REACH Compliant

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About Shafts

Low-Strength Steel Threaded Rods

About half the strength of medium-strength steel threaded rods, use these for light duty hanging, mounting, and fastening.

18-8 Stainless Steel Threaded Rods

18-8 stainless steel threaded rods have good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Threaded Rods

More corrosion resistant than 18-8 and 410 stainless steel threaded rods, these 316 stainless steel rods have excellent resistance to chemicals and salt water.

Aluminum Threaded Rods

One-third the weight of steel, aluminum threaded rods resist corrosion in wet environments.

Brass Threaded Rods

Brass threaded rods are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

18-8 Stainless Steel Coupling Nuts

These coupling nuts have good chemical resistance.

Brass Coupling Nuts

Brass coupling nuts are corrosion resistant in wet environments and electrically conductive.

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

Linear Motion Shafts

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.

Step-Down Linear Motion Shafts

A shoulder near the end of the shaft allows for easy positioning of housings, shaft supports, and collars.

Linear Motion Shafts with Retaining Ring Grooves

Clip retaining rings into the grooves to separate and position collars, supports, and housings.

Rotary Shafts

Threaded Rotary Shafts

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

Tapped Rotary Shafts

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

D-Profile Rotary Shafts

A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings.

Step-Down Rotary Shafts

A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings.

Keyed Rotary Shafts

Combine with a machine key to transmit torque to gears, sprockets, and other power transmission components.

Rotary Shafts with Retaining Ring Grooves

Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings.