5mm Wire | McMaster-Carr

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

REACH Compliant

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Minimum Temperature Minimum Temperature

-250° F or less

Not Rated

	Fabrication Fabrication

Cold Drawn

Cold Worked

Hot Rolled

	Elongation Elongation

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

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14 Products

About Copper, Brass, and Bronze

About Stainless Steel

About Aluminum

About Tool Steel

About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron

Tight-Tolerance Easy-to-Machine 303 Stainless Steel

This material has tighter tolerances than standard 303 stainless steel. Widely used for fabricating fittings and fasteners, 303 stainless steel machines quickly without sticking to cutting tools. It maintains its corrosion resistance in temperatures up to 1500° F.

Rods are precision ground and held to a strict straightness tolerance, so they are ready for turning in a lathe.

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 ACTIVITY after your order ships.

Rods

Yield Strength: 35,000 psi
Hardness: See Table
Heat Treatment: Annealed (Softened)
Heat Treatable: No
Specifications Met: ASTM A582, SAE AMS5640

Dia.	Dia. Tolerance	Fabrication	Hardness	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5mm	-0.0127mm to 0.0127mm	Cold Worked	Rockwell B85 (Medium)	1/8" per 6 ft.	0000000	00000	000000	000000

Hardened Tight-Tolerance High-Strength 17-4 PH Stainless Steel

Yield Strength: 170,000 psi
Hardness: Rockwell C40 (Hard)
Heat Treatment: Hardened
Temper: H900
Specifications Met: ASTM A564, SAE AMS5643

Hardened for improved strength and wear resistance, these rods are precision ground to a strict diameter tolerance. Use them for turning applications in your lathe. With a higher chromium content than 15-5 PH stainless steel, this high-strength 17-4 PH offers better corrosion resistance. It’s also known as 630 stainless steel. This material maintains its corrosion resistance in temperatures up to 1100° F.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance	Fabrication	Straightness Tolerance	Magnetic Properties		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5mm	-0.013mm to 0mm	Cold Worked	1/16" per ft.	Magnetic	0000000	000000	000000	000000

Low-Carbon Steel Rods and Discs

Yield Strength: See table
Hardness: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: See table
Specifications Met: See table

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. This material can be surface hardened with heat treating.

If you don't see the size you're looking for, please specify a length under additional rod lengths.

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 ACTIVITY after your order ships.

Dia., mm	Dia. Tolerance, mm	Yield Strength, psi	Hardness	Max. Hardness After Heat Treatment	Specifications Met		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5	-0.05 to 0	60,000	Rockwell B85 (Medium)	Not Rated	ASTM A108	0000000	00000	00000	000000

Tight-Tolerance Ultra-Machinable 12L14 Carbon Steel Rods

Yield Strength: 65,000 psi
Hardness: Rockwell B80 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C65
Specifications Met: ASTM A108

Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance	Heat Treatment	Mechanical Finish	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5mm	-0.012mm to 0mm	Annealed (Softened)	Precision Ground	1/16" per 3 ft.	00000000	00000	00000	000000

Tight-Tolerance Multipurpose 4140 Alloy Steel Rods

Yield Strength: 60,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A108

Ready for turning in your lathe, these rods are precision ground and held to a strict straightness tolerance. 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.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance	Heat Treatment	Mechanical Finish	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5mm	-0.013mm to 0mm	Annealed (Softened)	Precision Ground	1/16" per 3 ft.	0000000	000000	000000	000000

Multipurpose 4140 Alloy Steel Rods and Discs

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.

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 ACTIVITY after your order ships.

Dia., mm	Dia. Tolerance, mm	Heat Treatment		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5	-0.051 to 0	Annealed (Softened)	0000000	00000	000000	000000

Multipurpose 110 Copper Rods and Discs

Yield Strength:
Inch sizes: Not Rated
Metric sizes: 17,000 psi
Hardness:
Inch sizes: Rockwell F65 (Soft)
Metric sizes: Brinell 35 (Soft)
Temper:
Inch sizes: H04 (Full Hard)
Metric sizes: Not Rated
Heat Treatable: No
Specifications Met:
Inch sizes: ASTM B187
Metric sizes: European Standard EN 13601

Offering high electrical conductivity and formability, 110 copper is 99.9% pure. Also known as ETP copper, it's often used in electrical applications, such as for bus bars and wire connectors, as well as for flashing, gaskets, and rivets.

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 ACTIVITY after your order ships.

		1 m Lg.
Dia., mm	Dia. Tolerance Range , mm		Each
5	-0.11 to 0.11	0000000	000000

Ultra-Machinable 360 Brass Rods and Discs

Yield Strength:
Inch sizes: 15,000 psi
Metric sizes: 23,000 psi
Hardness: See table
Temper:
Inch sizes: H02 (1/2 Hard)
Metric sizes: 1/2 Hard
Heat Treatable: No
Specifications Met:
Inch sizes: ASTM B16
Metric sizes: European Standard EN 12164

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.

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 ACTIVITY after your order ships.

			1 m Lg.
Dia., mm	Dia. Tolerance Range, mm	Hardness		Each
5	-0.05 to 0.05	Rockwell B75 (Medium)	0000000	000000

Easy-to-Machine Architectural 385 Brass Rods

Yield Strength:
Inch sizes: 16,000 psi
Metric sizes: 60,000 psi
Hardness:
Inch sizes: Rockwell B40 (Soft)
Metric sizes: Rockwell B55 (Soft)
Temper:
Inch sizes: H02 (1/2 Hard)
Metric sizes: 1/2 Hard
Heat Treatable: No
Specifications Met:
Inch sizes: ASTM B455
Metric Sizes: European Standard EN 12164

Often called architectural bronze, 385 brass is easy to machine and has excellent formability when heated. It is typically used for handrails, ornamental trim, and hardware, such as hinges and lock bodies.

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 ACTIVITY after your order ships.

			1 m Lg.
Dia., mm	Dia. Tolerance Range, mm	Straightness Tolerance		Each
5	-0.05	.4 mm per 400 mm	0000000	000000

Tight-Tolerance High-Strength 7075 Aluminum Rods

Yield Strength: 73,000 psi
Hardness: Brinell 150 (Medium)
Temper: T6
Fabrication: Cold Worked
Specifications Met: ASTM B211

Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. 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.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance	Heat Treatment	Temperature Range, °F	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5mm	-0.0127mm to 0.0000mm	Hardened	-320° to 210°	0.005" per ft.	0000000	000000	000000	000000

Hardened Undersized High-Speed M2 Tool Steel Rods

Yield Strength: Not Rated
Hardness: Rockwell C60 (Very Hard)

These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance	Drill Bit Size	Lg.	Mechanical Finish	Straightness Tolerance		Each
5mm	-0.0050mm to 0.0000mm	5 mm	3 5/8"	Precision Ground	0.012" per ft.	00000000	00000

Tight-Tolerance Multipurpose Oil-Hardening O1 Tool Steel Rods

Yield Strength: 50,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment:
Inch sizes: Rockwell C65
Metric sizes: Rockwell C62
Specifications Met: ASTM A681

Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion.

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 ACTIVITY after your order ships.

			3 ft. Lg.
Dia.	Dia. Tolerance	Mechanical Finish
5mm	-0.013mm to 0.013mm	Precision Ground	00000000

Tight-Tolerance Multipurpose Air-Hardening A2 Tool Steel Rods

Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. They’re also known as drill rod. A2 tool steel is more wear resistant than O1 and it keeps a sharper cutting edge. This air-hardening material is widely used for punches, broaches, and dies.

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 ACTIVITY after your order ships.

Metric Rods

Yield Strength: 55,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C62
Specifications Met: ASTM A681

Dia., mm	Dia. Tolerance, mm	Heat Treatment	Mechanical Finish	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5	-0.025 to 0.025	Annealed (Softened)	Precision Ground	0.0125" per ft.	0000000	00000	000000	000000

Ultra-Hard C2 Tungsten Carbide Rods

Yield Strength: Not Rated
Hardness: Rockwell C80 (Very Hard)
Temper Rating: Not Rated

Tungsten carbide, sometimes called carbide, is harder than Corrosion-Resistant Tungsten with excellent wear resistance. Use it to machine long-lasting tools, such as end mills and inserts.

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

Rods

Rod

Dia.	Dia. Tolerance	Lg.	Lg. Tolerance	Mechanical Finish		Each
5mm	-0.007mm to 0mm	50mm	-1.5mm to 1.5mm	Precision Ground	0000000	00000