3/8" Shafts | McMaster-Carr

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Product Family

Driver Extension Adapters

System of Measurement

Diameter

Length

Material

End Type

Retaining Ring Groove

Shaft Type

Shape

Mechanical Finish

Edge Type

Thread Size

For Motion

Hardness Rating

Tolerance Rating

Hardness

Durometer 41D to Durometer 46D

Durometer 50D to Durometer 60D

Durometer 52D to Durometer 55D

Durometer 55D to Durometer 66D

Durometer 56D

Durometer 60D

Durometer 65D to Durometer 67D

Performance

Electrical Insulating

Heat Treatment

Thread Length

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

Steel Grade

1018 Low-Carbon Steel

Finish

D-Profile Length

Keyway Width

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714 Products

Power Transmission

Rotary Shafts

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

106 products

Linear Shafts

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

84 products

Idler Shafts

Support idler sprockets and pulleys in tensioning applications

2 products

Sleeve Splines

Pair with sleeve spline bearings to transmit rotary power or move loads along the shaft

3 products

Raw Materials

Steel

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

48 products

Stainless Steel

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

50 products

Aluminum

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

15 products

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

11 products

Tungsten

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

20 products

Brass

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

5 products

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

3 products

Cobalt

Resists impact and rapid temperature changes—all with material certificates for traceability

1 product

Copper

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

8 products

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

9 products

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

3 products

Plastic

A lightweight alternative to metal and glass

49 products

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

6 products

Garolite

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

18 products

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

1 product

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

3 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

19 products

Fastening and Joining

Dowel Pins

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

208 products

Dowel Pin Stock

Cut to the length you need for positioning and holding parts in place

6 products

Driver Extension Adapters

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

6 products

Fluid Handling

Mixer Shafts

Replace the shaft on mixers

6 products

Building and Machinery Hardware

Ball-Lever Shafts

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

16 products

Lever Handles

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

5 products

Facility and Grounds Maintenance

Rebar

Reinforces concrete to reduce the chance it will crack from expansion and contraction

3 products