3/8" Rods | McMaster-Carr

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System of Measurement

Diameter

Shape

Length

Material

Tolerance Rating

Hardness Rating

Performance

Electrically Insulating

Mechanical Finish

Specifications Met

Flexibility

End Type

Retaining Ring Groove

Hardness

Color

Certificate Type

Calibration Certificate Traceable to NIST

Heat Treatment

Fabrication

Appearance

DFARS Specialty Metals

Steel Grade

1018 Low-Carbon Steel

Yield Strength

10,000 psi to 19,999 psi

20,000 psi to 99,999 psi

100,000 psi to 199,999 psi

200,000 psi or greater

REACH

RoHS

Compliant with Exemptions

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

734 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

33 products

Plastic

A lightweight alternative to metal and glass

50 products

Aluminum

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

16 products

Copper

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

8 products

Brass

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

5 products

Bronze

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

11 products

Garolite

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

18 products

Fiberglass

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

6 products

Tungsten

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

20 products

Ceramic

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

19 products

Titanium

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

3 products

Nickel

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

9 products

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

25 products

Carbon Fiber

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

3 products

Graphite

Compressible or conductive for making high-temperature seals, furnace parts, and crucibles

2 products

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

6 products

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

8 products

Hard Fiber

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

1 product

Cobalt

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

1 product

Molybdenum

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

3 products

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

2 products

Power Transmission

Linear Shafts

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

85 products

Rotary Shafts

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

106 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

Fastening and Joining

Dowel Pins

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

211 products

Dowel Pin Stock

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

6 products

Stick Electrodes

Flux coated for stability and speed when welding most metals

2 products

Fluid Handling

Mixer Shafts

Replace the shaft on mixers

6 products

Corrosion-Inhibiting Rods and Pads

Protect tanks, water heaters, and heat exchangers from rust; also known as sacrificial anodes

2 products

Sealing

Backer Rods

Insert into gaps before caulking to reduce how much sealant you need and improve adhesion

5 products

Facility and Grounds Maintenance

Rebar

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

3 products

Measuring and Inspecting

Calibration Rods

Check and set micrometers and other measuring tools

6 products