Metric Shafts | McMaster-Carr

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System of Measurement

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Length

Material

End Type

Retaining Ring Groove

Shape

Shaft Type

Round with Support Rail

Mechanical Finish

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For Motion

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Hardness Rating

Tolerance Rating

Hardness

Shaft Diameter

6.000 mm to 10.000 mm

6.000 mm to 12.000 mm

6.000 mm to 16.000 mm

6.000 mm to 20.000 mm

7 mm

8 mm

9 mm

9.500 mm to 25.000 mm

9.500 mm to 30.000 mm

9.500 mm to 35.000 mm

Performance

Electrical Insulating

Electrically Isolating

Steel Grade

1010 Low-Carbon Steel

1018 Low-Carbon Steel

Width

Heat Treatment

REACH

RoHS

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

Keyway Width

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7,461 Products

Power Transmission

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion

324 products

Linear Shafts

Pair with linear bearings and shaft supports to create smooth, precise motion

358 products

Idler Shafts

Support idler sprockets and pulleys in tensioning applications

8 products

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

72 products

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

1,030 products

Flexible Shaft Couplings

Connect two shafts that are misaligned to transfer rotary motion from one to the other

793 products

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

280 products

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

164 products

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

56 products

Ball Splines and Bearings

Combine ball splines and bearings to create linear and rotary motion systems

51 products

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

3 products

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

29 products

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

8 products

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

3 products

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

263 products

Gear Worms

Couple with a worm gear to reduce speed while transferring motion at a right angle in one direction

6 products

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

432 products

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

260 products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

49 products

Brass

More machinable than copper and bronze—all with material certificates for traceability

51 products

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

19 products

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

7 products

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

31 products

Plastic

A lightweight alternative to metal and glass

16 products

Fastening and Joining

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

1,154 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

47 products

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

1,149 products

Standoffs

Separate, position, or connect components in assemblies

245 products

Threaded Rod Collars

Hold and position parts on a threaded rod

10 products

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

27 products

Driver Extension Adapters

Create a tool that’s as long as you need to reach deeply recessed fasteners

18 products

Fabricating and Machining

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

307 products

Building and Machinery Hardware

Lever Handles

Replace gear levers or attach to cranks and hand wheels to make them easier to turn

8 products

Ball-Lever Shafts

Attach a ball knob to create a custom handle for operating machinery

8 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

15 products

Sealing

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

178 products