2024 Aluminum Rods | McMaster-Carr

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	Shape Shape


Hex Bar	Rod and Disc

Round Tube

	System of Measurement System of Measurement

Inch

	Diameter Diameter

	Material Material	Show

Aluminum

2024 Aluminum

	Material Material	Hide

	Temper Temper

T351

	Tolerance Rating Tolerance Rating

Standard

Undersized

Tight

	Hardness Rating Hardness Rating

Soft

Medium

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	ID ID

	OD OD

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Yield Strength Yield Strength

20,000 to 99,999 psi

	Appearance Appearance

	Plain

	Specifications Met Specifications Met

ASTM

SAE

	Aluminum Performance Properties Aluminum Performance Properties

Easy to Machine

	Fabrication Fabrication

Cold Drawn

Cold Worked

	Heat Treatment Heat Treatment

Hardened

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Wall Thickness Wall Thickness

	Maximum Temperature Maximum Temperature

Less than 500° F

	Hardness Hardness

Brinell 120

	Heat Treatable Heat Treatable

Yes

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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127 Products

About Shafts

About Aluminum

Yield Strength: 45,000 psi
Hardness: Brinell 120 (Medium)
Temper:
3/16" to 3/8" dia.: T4
All other sizes: T351
Fabrication: Cold Drawn
Specifications Met: ASTM B211, SAE AMS-QQ-A-225/6, SAE AMS4120

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.

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Rods

Dia.	Dia. Tolerance	Heat Treatment	Temperature Range, °F		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
5/16"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	0000	00000	00000
3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
5/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
7/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	00000	00000	00000	00000
1"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	00000	00000	00000	00000
1 1/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	00000
1 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
1 3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
1 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
1 5/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	000000	000000
1 3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
1 7/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 1/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
2 5/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
2 3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3 1/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3 3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
3 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
3 3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00000000
4 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00000000
5"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00
5 1/2"	-0.020" to 0.020"	Hardened	-320° to 300°	00000000	000000	000000	000000	00000000	00
6"	-0.020" to 0.020"	Hardened	-320° to 300°	00000000	000000	000000	000000	00000000	00

Tight-Tolerance High-Strength 2024 Aluminum Rods

Yield Strength: 37,000 psi
Hardness: Brinell 120 (Medium)
Temper: T4
Fabrication: Cold Worked
Specifications Met: ASTM B211, SAE AMS-QQ-A225

These rods are precision ground and held to a strict straightness tolerance, so they’re ready for turning in a lathe. 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.

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Heat Treatment	Temperature Range, °F	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
3/32"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	000000	000000
1/8"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	0000	00000	00000
3/16"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	0000	00000	00000
1/4"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	00000
5/16"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	00000
3/8"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	00000
7/16"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	00000
1/2"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	00000
9/16"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	000000
5/8"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	000000
3/4"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	000000
7/8"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	00000	000000
1"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	000000	000000
1 1/4"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	000000	000000
1 1/2"	-0.0005" to 0.000"	Hardened	-320° to 300°	0.005" per ft.	0000000	00000	000000	000000

High-Strength 2024 Aluminum Tubes

Yield Strength: 42,000 psi
Hardness: Brinell 120 (Medium)
Temper: T3
Fabrication: Cold Drawn
Specifications Met: ASTM B210

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

0.035" Wall Thick. (-0.004" to 0.004" Tolerance)
OD	OD Tolerance	ID	Heat Treatment	Temperature Range, °F		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.008" to 0.008"	0.180"	Hardened	-320° to 300°	0000000	000000	000000	000000
3/8"	-0.008" to 0.008"	0.305"	Hardened	-320° to 300°	0000000	00000	00000	00000
1/2"	-0.008" to 0.008"	0.430"	Hardened	-320° to 300°	0000000	00000	00000	00000
5/8"	-0.008" to 0.008"	0.555"	Hardened	-320° to 300°	0000000	00000	00000	00000
1"	-0.008" to 0.008"	0.930"	Hardened	-320° to 300°	0000000	00000	00000	00000
1 1/2"	-0.020" to 0.020"	1.430"	Hardened	-320° to 300°	0000000	00000	00000	00000
0.049" Wall Thick. (-0.005" to 0.005" Tolerance)
3/8"	-0.008" to 0.008"	0.277"	Hardened	-320° to 300°	0000000	00000	00000	00000
1/2"	-0.008" to 0.008"	0.402"	Hardened	-320° to 300°	0000000	00000	00000	00000
5/8"	-0.008" to 0.008"	0.527"	Hardened	-320° to 300°	0000000	00000	00000	00000
7/8"	-0.008" to 0.008"	0.777"	Hardened	-320° to 300°	0000000	00000	00000	00000
1"	-0.008" to 0.008"	0.902"	Hardened	-320° to 300°	0000000	00000	00000	00000
0.058" Wall Thick. (-0.006" to 0.006" Tolerance)
3/8"	-0.008" to 0.008"	0.259"	Hardened	-320° to 300°	0000000	00000	00000	00000
1/2"	-0.008" to 0.008"	0.384"	Hardened	-320° to 300°	0000000	00000	00000	00000
5/8"	-0.008" to 0.008"	0.509"	Hardened	-320° to 300°	0000000	00000	00000	000000
3/4"	-0.008" to 0.008"	0.634"	Hardened	-320° to 300°	0000000	00000	00000	00000
7/8"	-0.008" to 0.008"	0.759"	Hardened	-320° to 300°	0000000	00000	00000	00000
0.065" Wall Thick. (-0.007" to 0.007" Tolerance)
1/4"	-0.008" to 0.008"	0.120"	Hardened	-320° to 300°	0000000	00000	00000	00000
3/8"	-0.008" to 0.008"	0.245"	Hardened	-320° to 300°	0000000	00000	00000	00000
1/2"	-0.008" to 0.008"	0.370"	Hardened	-320° to 300°	0000000	00000	00000	00000
5/8"	-0.008" to 0.008"	0.495"	Hardened	-320° to 300°	0000000	00000	00000	00000
3/4"	-0.008" to 0.008"	0.620"	Hardened	-320° to 300°	0000000	00000	00000	00000
7/8"	-0.008" to 0.008"	0.745"	Hardened	-320° to 300°	0000000	00000	00000	00000
1"	-0.008" to 0.008"	0.870"	Hardened	-320° to 300°	0000000	00000	00000	00000
1 1/2"	-0.020" to 0.020"	1.370"	Hardened	-320° to 300°	0000000	00000	00000	000000
2"	-0.020" to 0.020"	1.870"	Hardened	-320° to 300°	0000000	00000	000000	000000
2 1/2"	-0.020" to 0.020"	2.370"	Hardened	-320° to 300°	0000000	00000	000000	000000
3"	-0.020" to 0.020"	2.870"	Hardened	-320° to 300°	0000000	00000	000000	000000
0.083" Wall Thick. (-0.01" to 0.01" Tolerance)
1/2"	-0.008" to 0.008"	0.334"	Hardened	-320° to 300°	0000000	00000	00000	00000
5/8"	-0.008" to 0.008"	0.459"	Hardened	-320° to 300°	0000000	00000	00000	00000
3/4"	-0.008" to 0.008"	0.584"	Hardened	-320° to 300°	0000000	00000	00000	00000
1"	-0.008" to 0.008"	0.834"	Hardened	-320° to 300°	0000000	00000	00000	000000
0.095" Wall Thick. (-0.011" to 0.011" Tolerance)
1/2"	-0.008" to 0.008"	0.310"	Hardened	-320° to 300°	0000000	00000	00000	00000
3/4"	-0.008" to 0.008"	0.560"	Hardened	-320° to 300°	0000000	00000	00000	000000
7/8"	-0.008" to 0.008"	0.685"	Hardened	-320° to 300°	0000000	00000	00000	000000
1"	-0.008" to 0.008"	0.810"	Hardened	-320° to 300°	0000000	00000	00000	000000
0.12" Wall Thick. (-0.014" to 0.014" Tolerance)
1/2"	-0.008" to 0.008"	0.260"	Hardened	-320° to 300°	0000000	00000	00000	00000
3/4"	-0.008" to 0.008"	0.510"	Hardened	-320° to 300°	0000000	00000	00000	000000
7/8"	-0.008" to 0.008"	0.635"	Hardened	-320° to 300°	0000000	00000	00000	000000
1"	-0.008" to 0.008"	0.760"	Hardened	-320° to 300°	0000000	00000	00000	000000
1 1/2"	-0.020" to 0.020"	1.260"	Hardened	-320° to 300°	0000000	00000	00000	000000
2"	-0.020" to 0.020"	1.760"	Hardened	-320° to 300°	0000000	00000	000000	000000
2 1/2"	-0.020" to 0.020"	2.260"	Hardened	-320° to 300°	0000000	00000	000000	000000
3"	-0.020" to 0.020"	2.760"	Hardened	-320° to 300°	0000000	000000	000000	000000
4"	-0.020" to 0.020"	3.760"	Hardened	-320° to 300°	0000000	000000	000000	000000
1/4" Wall Thick. (-0.03" to 0.03" Tolerance)
1"	-0.008" to 0.008"	0.500"	Hardened	-320° to 300°	0000000	00000	000000	000000
1 1/2"	-0.020" to 0.020"	1.000"	Hardened	-320° to 300°	0000000	00000	000000	000000
2"	-0.020" to 0.020"	1.500"	Hardened	-320° to 300°	0000000	000000	000000	000000
2 1/2"	-0.020" to 0.020"	2.000"	Hardened	-320° to 300°	0000000	000000	000000	000000
3"	-0.020" to 0.020"	2.500"	Hardened	-320° to 300°	0000000	000000	000000	000000
4"	-0.020" to 0.020"	3.500"	Hardened	-320° to 300°	0000000	000000	000000	000000
5"	-0.020" to 0.020"	4.500"	Hardened	-320° to 300°	0000000	000000	000000	00000000
6"	-0.020" to 0.020"	5.500"	Hardened	-320° to 300°	0000000	000000	000000	00000000

High-Strength 2024 Aluminum Hex Bars

Yield Strength: 47,000 psi
Hardness: Brinell 120 (Medium)
Temper:
1/4" wd.: T4
All other sizes: T351
Fabrication: Cold Drawn
Specifications Met: ASTM B211

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Wd.	Wd. Tolerance	Heat Treatment	Temperature Range, °F		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
1/2"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	00000
3/4"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	000000
7/8"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	000000
1"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	000000
1 1/8"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
1 1/4"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
1 1/2"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
2"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000

Keyed Rotary Shafts

Combine these shafts with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components. All have an ANSI standard keyway (keys not included; see our selection of key stock). Their edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

2024 aluminum shafts are a lightweight, corrosion resistant, and nonmagnetic. They have a T4 temper, which means they have been heat treated for increased strength.

For technical drawings and 3-D models, click on a part number.

Fully Keyed

	Keyway
Lg.	Lg.	Wd.	Dp.	ANSI Keys Included	Edge Type	Yield Strength, psi		Each
Inch—2024 Aluminum (Brinell 120)
5/16" Dia.
6"	6"	0.094"	0.047"	No	Chamfered	47,000	0000000	000000
12"	12"	0.094"	0.047"	No	Chamfered	47,000	0000000	00000
24"	24"	0.094"	0.047"	No	Chamfered	47,000	0000000	00000
3/8" Dia.
6"	6"	0.094"	0.047"	No	Chamfered	47,000	0000000	00000
12"	12"	0.094"	0.047"	No	Chamfered	47,000	0000000	00000
24"	24"	0.094"	0.047"	No	Chamfered	47,000	0000000	00000
1/2" Dia.
6"	6"	0.125"	0.063"	No	Chamfered	47,000	0000000	00000
12"	12"	0.125"	0.063"	No	Chamfered	47,000	0000000	00000
24"	24"	0.125"	0.063"	No	Chamfered	47,000	0000000	00000
5/8" Dia.
6"	6"	0.188"	0.094"	No	Chamfered	47,000	0000000	00000
12"	12"	0.188"	0.094"	No	Chamfered	47,000	0000000	00000
24"	24"	0.188"	0.094"	No	Chamfered	47,000	0000000	00000
3/4" Dia.
6"	6"	0.188"	0.094"	No	Chamfered	47,000	0000000	00000
12"	12"	0.188"	0.094"	No	Chamfered	47,000	0000000	00000
24"	24"	0.188"	0.094"	No	Chamfered	47,000	0000000	00000
1" Dia.
6"	6"	0.25"	0.125"	No	Chamfered	47,000	0000000	00000
12"	12"	0.25"	0.125"	No	Chamfered	47,000	0000000	00000
24"	24"	0.25"	0.125"	No	Chamfered	47,000	0000000	00000

Email Us

About Shafts

About Aluminum

High-Strength 2024 Aluminum Rods and Discs

Tight-Tolerance High-Strength 2024 Aluminum Rods

High-Strength 2024 Aluminum Tubes

High-Strength 2024 Aluminum Hex Bars

Keyed Rotary Shafts