4 1/2" Shafts | McMaster-Carr

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System of Measurement

Diameter

Shape

Length

Material

Stainless Steel

Heat Treatment

Stress Relieved

Fabrication

Hardness Rating

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

Tolerance Rating

Hardness

Durometer 52D to Durometer 55D

Durometer 65D to Durometer 67D

Specifications Met

Steel Grade

1018 Low-Carbon Steel

Certificate Type

Material Certificate with Traceable Lot Number

Appearance

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

DFARS Specialty Metals

REACH

Heat Treatable

Color

Minimum Temperature

-399° F to -250° F

-249° F to -100° F

-99° F to 0° F

Greater than 0° F

Maximum Temperature

Less than 500° F

500° F to 999° F

1,000° F to 1,999° F

Performance

Chemical Resistant

Corrosion Resistant

Easy Thermoform

Electrically Insulating

High Temperature

Impact Resistant

Moisture Resistant

Thermally Stable

Elongation

Maximum Hardness After Heat Treatment

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53 Products

Metal

Low-Carbon Steel Rods and Discs

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Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into low-strength fasteners, pins, and axles.

High-Strength Easy-to-Machine
1144 Carbon Steel Rods

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Made with more carbon and manganese than other easy-to-machine carbon steels, 1144 carbon steel has a higher yield strength and hardness. Also known as Stressproof, these rods are stress-relieved to minimize warping during machining.

High-Strength 1045 Carbon Steel Rods and Discs

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Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.

Chrome-Plated Hardened
Multipurpose 4140 Alloy Steel Rods

A chrome plating on these rods increases their corrosion resistance. They're also hardened, which makes them more resistant to impacts and abrasion.

Multipurpose 4140 Alloy Steel Rods and Discs

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Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.

High-Strength 4340 Alloy Steel Rods

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Use for power transmission and structural applications that involve extreme impact, heat, and wear.

Oversized Easy-to-Machine
Gray Cast Iron Rods and Discs

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An oversized diameter allows for finishing to your exact requirements.

Impact-Resistant Ductile Cast Iron Rods and Discs

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Ductile cast iron is strong, resilient, and able to handle repeated stress without breaking.

Oversized Multipurpose Oil-Hardening
O1 Tool Steel Rods and Discs

An oversized diameter allows for finishing to your exact requirements.

Oversized Multipurpose Air-Hardening
A2 Tool Steel Rods and Discs

Oversized Multipurpose Air-Hardening A2 Tool Steel Rods and Discs

An oversized diameter allows for finishing to your exact requirements.

Oversized Wear-Resistant D2
Tool Steel Rods and Discs

An oversized diameter allows for finishing to your exact requirements.

Oversized High-Temperature H13 Tool Steel Rods

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An oversized diameter on these rods allows for finishing to your exact requirements.

Oversized Shock-Resistant
S7 Tool Steel Rods and Discs

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An oversized diameter allows for finishing to your exact requirements.

Easy-to-Machine 303 Stainless Steel

Widely used for fabricating fittings and fasteners, 303 stainless steel machines quickly without sticking to cutting tools.

High-Strength 17-4 PH Stainless Steel

With a higher chromium content than 15-5 PH stainless steel, this high-strength 17-4 PH offers better corrosion resistance. It is also known as 630 stainless steel.

Multipurpose 6061 Aluminum Rods and Discs

The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.

High-Strength 7075 Aluminum Rods and Discs

High-Strength 7075 Aluminum Rods and Discs

Originally developed for aircraft frames, uses for 7075 aluminum now include keys, gears, and other high-stress parts. It is often used as a replacement for 2024 aluminum because it’s stronger and provides similar performance in all other aspects.

High-Strength 2024 Aluminum Rods and Discs

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While 2024 aluminum was initially designed for structural components in aircraft, it's now widely used when a high strength-to-weight ratio is needed, such as for gears, shafts, and fasteners. It offers similar performance to 7075 aluminum, but it’s not as strong.

Ultra-Machinable 360 Brass Rods and Discs

With the highest lead content of all the brass alloys, 360 offers the best machinability. Often called free-machining and free-cutting brass, it stands up to high-speed drilling, milling, and tapping operations with minimal wear on your tools. It’s commonly used for gears, pinions, and lock components.

Oversized 932 Bearing Bronze Rods

Diameter is oversized to allow for finishing.

Weldable 954 Bearing Bronze Rods

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954 bronze contains a minimum of 10% aluminum for strength and weldability. It is also known as aluminum bronze. It's widely used for bearings, bushings, valve bodies, and worm gears.

Multipurpose Plastic

Wear-Resistant Easy-to-Machine
Delrin® Acetal Resin Rods and Discs

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Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.

Wear-Resistant Easy-to-Machine
Acetal Rods and Discs

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An economical alternative to Delrin® acetal resin, this acetal copolymer offers similar wear resistance.

Wear-Resistant Nylon Rods and Discs

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Also known as nylon 6/6, this general purpose material is often used for bearings, gears, valve seats, and other high-wear parts.

MDS-Filled Easy-to-Machine
Wear-Resistant Cast Nylon Rods and Discs

MDS-Filled Easy-to-Machine Wear-Resistant Cast Nylon Rods and Discs

The addition of MDS results in a nylon with exceptional wear resistance as well as self-lubricating properties.

Easy-to-Machine Wear-Resistant
Cast Nylon Rods and Discs

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This cast nylon 6 material is easier to machine than other types of nylon. It’s comparable to Nylatron and Nycast.

Slippery UHMW Polyethylene Rods and Discs

Slippery UHMW Polyethylene Rods and Discs

In addition to a low-friction surface that prevents sticking and binding, this tough material is impact and wear resistant to handle the scuffs, scrapes, and strikes that other plastics can’t.

Impact- and Chemical-Resistant PVC Rods

Offering greater impact resistance than standard PVC Type 1 with similar chemical resistance, this PVC Type 2 is widely used for parts that are subject to shock.

High-Temperature CPVC Rods

CPVC is just as chemical resistant as standard PVC Type 1 and can handle hotter temperatures up to 200° F.

Chemical-Resistant Slippery PTFE Rods and Discs

Chemical-Resistant Slippery PTFE Rods and Discs

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Known for its naturally slippery surface, PTFE surpasses most plastics when it comes to chemical resistance and performance in extreme temperatures.

Clear Scratch- and UV-Resistant Cast Acrylic Rods and Discs

Clear Scratch- and UV-Resistant
Cast Acrylic Rods and Discs

Clear Scratch- and UV-Resistant Cast Acrylic Rods and Discs

Cast acrylic is easier to machine than extruded acrylic. It's comparable to Lucite and Plexiglas® Acrylic.

Garolite

Multipurpose Flame-Retardant
Garolite G-10/FR4 Rods

A good all-around choice, Garolite G-10/FR4 is strong, machinable, and electrically insulating. It meets UL 94 V-0 for flame retardance.

Economical Garolite CE Rods

Garolite CE is often fabricated into parts where high strength is not required.

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