3/8" Shafts | McMaster-Carr

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System of Measurement

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Material

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Hardness Rating

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Hardness

Shaft Type

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Tolerance Rating

Heat Treatment

Finish

Number of Grooves

Keyway Length

USMCA Qualifying

REACH Compliance

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709 Products

Power Transmission

Shafts

Transmit power, motion, and speed between machine components

Splines and Spline Bearings

Splines and Spline Bearings

Transmit rotary power or move loads along the length of splines

Raw Materials

Steel

Strong, machinable, and weldable but lacks corrosion resistance

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments

Aluminum

Lightweight, easy to machine, and corrosion resistant in wet environments

Plastic

A lightweight alternative to metal and glass

Cobalt

Slides against other materials without wearing and sticking; resists impact and rapid temperature changes

Brass

More machinable than copper and bronze for making nuts, hinges, and locks

Bronze

With better wear resistance than copper and brass, it’s used for bearings, gears, and pump parts

Titanium

The most corrosion-resistant metal we offer, with very high strength relative to its weight

Fiberglass

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

Ceramic

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

Garolite

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

Tungsten

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

Nickel

An upgrade from stainless steel that withstands harsh chemicals and acids at high temperatures

Copper

The most conductive of our metals, it excels in all types of electrical applications

Carbon Fiber

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

Molybdenum

Retains its shape and strength in extreme temperatures and conducts heat and electricity

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

Hard Fiber

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

Fastening and Joining

Dowel Pins

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

Dowel Pin Stock

Dowel Pin Stock

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

Fluid Handling

Mixer Shafts

Replace the shaft on mixers

Building and Machinery Hardware

Ball-Lever Shafts

Ball-Lever Shafts

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

Lever Handles

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

Facility and Grounds Maintenance

Rebar

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)