M25 Threaded Rods | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	Thread Size Thread Size	Show

M25

	Thread Size Thread Size	Hide

	Length Length

	Diameter Diameter

25mm

43 mm

60 mm

	Component Component

	Ball Nut
	Ball Screw

	Travel Distance per Turn Travel Distance per Turn

5 mm

10mm

	Root Diameter Root Diameter

20.2 mm

22.2 mm

	Threading Threading

	Fully Threaded

	Material Material

Stainless Steel

Steel

	Thread Direction Thread Direction

	Right Hand

	Nut Type Nut Type


Flange	Platform

	End Type End Type


Threaded	Straight

Made to Order	Tapped

Step Down	D-Profile

With Retaining Ring Grooves	Keyed

	Thread Type Thread Type

Metric Ball

	Hardness Hardness

	Number of Thread Starts Number of Thread Starts

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

	Minimum Temperature Minimum Temperature

5° F

	Maximum Temperature Maximum Temperature

150° to 199° F

	Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity

1,000 to 1,999 lbs.

3,000 to 9,999 lbs.

	Thread Length Thread Length

	Edge Type Edge Type

	Chamfered

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

REACH Compliant

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43 Products

About Shafts

Selecting Compatible Lead 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 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. To ensure compatibility, select components that have the same thread size and travel distance per turn. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.

For technical drawings and 3-D models, click on a part number.

Ball Screws—Right-Hand Threaded

Root diameter indicates the diameter the ball screw will be after machining away the threads.

Carbon Steel
Thread Size	Lg., mm	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Root Dia., mm	Hardness	Tensile Strength, psi	Temperature Range, °F		Each
M25	500	1	5	±0.210 mm per 300 mm	22.2	Rockwell C58	21,000	5° to 175°	0000000	0000000
M25	1,000	1	5	±0.210 mm per 300 mm	22.2	Rockwell C58	21,000	5° to 175°	0000000	000000
M25	1,500	1	10	±0.210 mm per 300 mm	20.2	Rockwell C58	21,000	5° to 175°	0000000	000000

Platform Ball Nuts—Right-Hand Threaded

Alloy Steel
Thread Size	Lg., mm	Wd., mm	Ht., mm	Center Ht., mm	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash, mm	Temperature Range, °F		Each
M25	35	60	45	20	1	5	Rockwell C58	1,500	0.1	5° to 175°	0000000	0000000
M25	94	60	55	23	1	10	Rockwell C58	7,000	0.1	5° to 175°	0000000	000000

Flange Ball Nuts—Right-Hand Threaded

Alloy Steel
Thread Size	Lg., mm	Dia., mm	Wd., mm, mm	Ht., mm	Thick., mm	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash, mm	Temperature Range, °F		Each
M25	40	43	67	50	10	1	5	Rockwell C58	1,500	0.1	5° to 175°	0000000	0000000
M25	98	60	96	72	15	1	10	Rockwell C58	7,000	0.1	5° to 175°	0000000	000000

Threaded Rotary Shafts

Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine. They are annealed (softened) for increased corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Made to Order—Threaded End × Straight End

Threaded End × Straight End

			Threaded End
Dia.	Choose a Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000

Made to Order—Threaded on Both Ends

Threaded on Both Ends

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For each end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).

			First Threaded End			For Second Threaded End
Dia.	Choose a Lg.	Choose a Thread Size for First Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Choose a Thread Size for Second Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000

Made to Order—Threaded End × Keyed End

Threaded End × Keyed End

Combine with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components.

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the keyed end of the shaft, please specify keyway length (in 0.005" or 0.1 mm increments).

			Threaded End		Keyed End
Dia.	Choose a Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Choose a Keyway Lg.	Keyway Wd.	Keyway Dp.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	10mm-150mm	8mm	4mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	10mm-150mm	8mm	4mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	10mm-150mm	8mm	4mm	Hardened	00000000	000000

Made to Order—Threaded End × D-Profile End

Threaded End × D-Profile End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the D-profile end of the shaft, please specify D-profile length (in 0.005" or 0.1 mm increments).

			Threaded End		D-Profile End
Dia.	Choose a Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Flat Wd.	Choose a D-Profile Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	12.5mm	10mm-150mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	12.5mm	10mm-150mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	12.5mm	10mm-150mm	Hardened	00000000	000000

Made to Order—Threaded End × End with Retaining Ring Grooves

Threaded End × End
with Retaining
Ring Grooves

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the end with retaining ring grooves, please specify end-to-groove length and groove-to-groove length (in 0.001" or 0.1 mm increments).

			Threaded End		End with Retaining Ring Grooves
Dia.	Choose a Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Choose an End-to-Groove Lg.	Choose a Groove-to-Groove Lg.	Groove Wd.	Groove Dia.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	6mm-500mm	0.1mm-500mm	1.3mm	23.9mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	6mm-500mm	0.1mm-500mm	1.3mm	23.9mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	6mm-500mm	0.1mm-500mm	1.3mm	23.9mm	Hardened	00000000	000000

Made to Order—Threaded End × Step-Down End

Threaded End × Step-Down End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the step-down end of the shaft, please specify step length (in 0.005" or 0.1 mm increments) and step diameter (in 0.001" or 0.01 mm increments).

			Threaded End		Step-Down End
Dia.	Choose a Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Choose a Step Lg.	Choose a Step Dia.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	10mm-500mm	0.79mm-25mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	10mm-500mm	0.79mm-25mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	10mm-500mm	0.79mm-25mm	Hardened	00000000	000000

Made to Order—Threaded End × Tapped End

Threaded End × Tapped End

Internal threads allow you to attach threaded components.

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size.

			Threaded End
Dia.	Choose a Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Choose a Thread Size (Thread Lg.) for Tapped End	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	M4 × 0.7 (8.130 mm), M4 × 0.75 (8.130 mm), M5 × 0.5 (9.910 mm), M5 × 0.8 (9.910 mm), M6 × 0.75 (11.940 mm), M6 × 1.0 (11.940 mm), M8 × 1.0 (16.000 mm), M8 × 1.25 (16.000 mm), M10 × 1.0 (20.000 mm), M10 × 1.25 (20.000 mm), M10 × 1.5 (20.000 mm), M12 × 1.25 (23.880 mm), M12 × 1.50 (23.880 mm), M12 × 1.75 (23.880 mm), M14 × 1.5 (28.000 mm), M14 × 2.0 (28.000 mm), M16 × 1.5 (32.000 mm), M16 × 2.0 (32.000 mm), M18 × 1.5 (36.000 mm), M18 × 2.5 (36.000 mm), M20 × 1.5 (40.130 mm), M20 × 2.5 (40.130 mm), M22 × 1.5 (44.000 mm), M22 × 2.5 (44.000 mm)	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	M4 × 0.7 (8.130 mm), M4 × 0.75 (8.130 mm), M5 × 0.5 (9.910 mm), M5 × 0.8 (9.910 mm), M6 × 0.75 (11.940 mm), M6 × 1.0 (11.940 mm), M8 × 1.0 (16.000 mm), M8 × 1.25 (16.000 mm), M10 × 1.0 (20.000 mm), M10 × 1.25 (20.000 mm), M10 × 1.5 (20.000 mm), M12 × 1.25 (23.880 mm), M12 × 1.50 (23.880 mm), M12 × 1.75 (23.880 mm), M14 × 1.5 (28.000 mm), M14 × 2.0 (28.000 mm), M16 × 1.5 (32.000 mm), M16 × 2.0 (32.000 mm), M18 × 1.5 (36.000 mm), M18 × 2.5 (36.000 mm), M20 × 1.5 (40.130 mm), M20 × 2.5 (40.130 mm), M22 × 1.5 (44.000 mm), M22 × 2.5 (44.000 mm)	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	M4 × 0.7 (8.130 mm), M4 × 0.75 (8.130 mm), M5 × 0.5 (9.910 mm), M5 × 0.8 (9.910 mm), M6 × 0.75 (11.940 mm), M6 × 1.0 (11.940 mm), M8 × 1.0 (16.000 mm), M8 × 1.25 (16.000 mm), M10 × 1.0 (20.000 mm), M10 × 1.25 (20.000 mm), M10 × 1.5 (20.000 mm), M12 × 1.25 (23.880 mm), M12 × 1.50 (23.880 mm), M12 × 1.75 (23.880 mm), M14 × 1.5 (28.000 mm), M14 × 2.0 (28.000 mm), M16 × 1.5 (32.000 mm), M16 × 2.0 (32.000 mm), M18 × 1.5 (36.000 mm), M18 × 2.5 (36.000 mm), M20 × 1.5 (40.130 mm), M20 × 2.5 (40.130 mm), M22 × 1.5 (44.000 mm), M22 × 2.5 (44.000 mm)	Hardened	00000000	000000

Tapped Rotary Shafts

Connect these internally threaded shafts directly to threaded components, or use a fastener to secure. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

For technical drawings and 3-D models, click on a part number.

Made to Order—Tapped End × Threaded End

Tapped End × Threaded End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size. For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).

				Threaded End
Dia.	Choose a Lg.	Choose a Thread Size (Thread Lg) for Tapped End	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	M4 × 0.7 (8.130 mm), M4 × 0.75 (8.130 mm), M5 × 0.5 (9.910 mm), M5 × 0.8 (9.910 mm), M6 × 0.75 (11.940 mm), M6 × 1.0 (11.940 mm), M8 × 1.0 (16.000 mm), M8 × 1.25 (16.000 mm), M10 × 1.0 (20.000 mm), M10 × 1.25 (20.000 mm), M10 × 1.5 (20.000 mm), M12 × 1.25 (23.880 mm), M12 × 1.50 (23.880 mm), M12 × 1.75 (23.880 mm), M14 × 1.5 (28.000 mm), M14 × 2.0 (28.000 mm), M16 × 1.5 (32.000 mm), M16 × 2.0 (32.000 mm), M18 × 1.5 (36.000 mm), M18 × 2.5 (36.000 mm), M20 × 1.5 (40.130 mm), M20 × 2.5 (40.130 mm), M22 × 1.5 (44.000 mm), M22 × 2.5 (44.000 mm)	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	M4 × 0.7 (8.130 mm), M4 × 0.75 (8.130 mm), M5 × 0.5 (9.910 mm), M5 × 0.8 (9.910 mm), M6 × 0.75 (11.940 mm), M6 × 1.0 (11.940 mm), M8 × 1.0 (16.000 mm), M8 × 1.25 (16.000 mm), M10 × 1.0 (20.000 mm), M10 × 1.25 (20.000 mm), M10 × 1.5 (20.000 mm), M12 × 1.25 (23.880 mm), M12 × 1.50 (23.880 mm), M12 × 1.75 (23.880 mm), M14 × 1.5 (28.000 mm), M14 × 2.0 (28.000 mm), M16 × 1.5 (32.000 mm), M16 × 2.0 (32.000 mm), M18 × 1.5 (36.000 mm), M18 × 2.5 (36.000 mm), M20 × 1.5 (40.130 mm), M20 × 2.5 (40.130 mm), M22 × 1.5 (44.000 mm), M22 × 2.5 (44.000 mm)	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	M4 × 0.7 (8.130 mm), M4 × 0.75 (8.130 mm), M5 × 0.5 (9.910 mm), M5 × 0.8 (9.910 mm), M6 × 0.75 (11.940 mm), M6 × 1.0 (11.940 mm), M8 × 1.0 (16.000 mm), M8 × 1.25 (16.000 mm), M10 × 1.0 (20.000 mm), M10 × 1.25 (20.000 mm), M10 × 1.5 (20.000 mm), M12 × 1.25 (23.880 mm), M12 × 1.50 (23.880 mm), M12 × 1.75 (23.880 mm), M14 × 1.5 (28.000 mm), M14 × 2.0 (28.000 mm), M16 × 1.5 (32.000 mm), M16 × 2.0 (32.000 mm), M18 × 1.5 (36.000 mm), M18 × 2.5 (36.000 mm), M20 × 1.5 (40.130 mm), M20 × 2.5 (40.130 mm), M22 × 1.5 (44.000 mm), M22 × 2.5 (44.000 mm)	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000

D-Profile Rotary Shafts

A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine.

Annealed shafts are softened for increased corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Made to Order—D-Profile End × Threaded End

D-Profile End × Threaded End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the D-profile end of the shaft, please specify D-profile length (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).

		D-Profile End			Threaded End
Dia.	Choose a Lg.	Flat Wd.	Choose a D-Profile Lg.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	12.5mm	10mm-150mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	12.5mm	10mm-150mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	12.5mm	10mm-150mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000

Step-Down Rotary Shafts

A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Annealed shafts have been softened for increased corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Made to Order—Step-Down End × Threaded End

Step-Down End × Threaded End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the step-down end of the shaft, please specify step length (in 0.005" or 0.1 mm increments) and step diameter (in 0.001" or 0.01 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).

		Step-Down End			Threaded End
Dia.	Choose a Lg.	Choose a Step Lg.	Choose a Step Dia.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	10mm-500mm	0.79mm-25mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	10mm-500mm	0.79mm-25mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	10mm-500mm	0.79mm-25mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000

Keyed Rotary Shafts

Combine these shafts with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components. All have an ANSI standard keyway (keys not included; see our selection of key stock). Their edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Stainless steel shafts are more corrosion resistant than steel shafts but also more difficult to machine. 303 and 304 stainless steel shafts have good corrosion resistance. 303 stainless steel shafts are annealed, which makes them softer than 304 stainless steel shafts but more corrosion resistant.

For technical drawings and 3-D models, click on a part number.

Made to Order—Keyed End × Threaded End

Keyed End × Threaded End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the keyed end of the shaft, please specify keyway length (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).

		Keyed End				Threaded End
Dia.	Choose a Lg.	Choose a Keyway Lg.	Keyway Wd.	Keyway Dp.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	10mm-150mm	8mm	4mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	10mm-150mm	8mm	4mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	10mm-150mm	8mm	4mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000

Rotary Shafts with Retaining Ring Grooves

Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Annealed shafts have been softened for increased corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Made to Order—End with Retaining Ring Grooves × Threaded End

End with Retaining
Ring Grooves ×
Threaded End

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

To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the end with retaining ring grooves, please specify end-to-groove length and groove-to-groove length (in 0.001" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).

		End with Retaining Ring Grooves					Threaded End
Dia.	Choose a Lg.	Choose an End-to-Groove Lg.	Choose a Groove-to-Groove Lg.	Groove Wd.	Groove Dia.	Choose a Thread Size for Threaded End	Choose a Thread Lg.	Choose a Step Lg.	Heat Treatment		Each
Metric—1045 Carbon Steel (Brinell 180)
25mm	75mm-1,000mm	6mm-500mm	0.1mm-500mm	1.3mm	23.9mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	__	00000000	0000000
Metric—303 Stainless Steel (Brinell 140)
25mm	75mm-1,000mm	6mm-500mm	0.1mm-500mm	1.3mm	23.9mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Annealed	00000000	000000
Metric—4140 Alloy Steel (Brinell 270)
25mm	75mm-1,000mm	6mm-500mm	0.1mm-500mm	1.3mm	23.9mm	M4 × 0.7, M4 × 0.75, M5 × 0.5, M5 × 0.8, M6 × 0.75, M6 × 1.0, M8 × 1.0, M8 × 1.25, M10 × 1.0, M10 × 1.25, M10 × 1.5, M12 × 1.25, M12 × 1.5, M12 × 1.75, M14 × 1.5, M14 × 2.0, M16 × 1.5, M16 × 2.0, M18 × 1.5, M18 × 2.5, M20 × 1.5, M20 × 2.5, M22 × 1.5, M22 × 2.5	10mm-100mm	10mm-500mm	Hardened	00000000	000000

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About Shafts

Selecting Compatible Lead Screws and Nuts

Metric Ball Screws and Nuts

Threaded Rotary Shafts

Tapped Rotary Shafts

D-Profile Rotary Shafts

Step-Down Rotary Shafts

Keyed Rotary Shafts

Rotary Shafts with Retaining Ring Grooves