M2 Shafts | 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

	Tensile Strength Tensile Strength

	Nut Type Nut Type


Flange	Externally Threaded

	Thread Spacing Thread Spacing

Coarse

	Thread Fit Thread Fit

Class 6g

	Specifications Met Specifications Met

DIN

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

DFARS Specialty Metals
COTS-Exempt

	Diameter Diameter

0.297"

	Finish Finish

Zinc Plated

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27 Products

About Threaded Studs and Rods

Selecting Compatible Lead Screws and Nuts

These threaded rods are about half the strength of medium-strength steel threaded rods for light duty hanging, mounting, and fastening.

Zinc-plated steel threaded rods are corrosion resistant in wet environments.

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

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2
1 m	0.4	50,000	Rockwell B49	DIN 976	1	000000000	000000
Zinc-Plated Steel
M2
50 mm	0.4	50,000	Rockwell B49	DIN 976	1	000000000	0000
300 mm	0.4	50,000	Rockwell B49	DIN 976	1	000000000	00000
1 m	0.4	50,000	Rockwell B49	DIN 976	1	000000000	0000

Metric 18-8 Stainless Steel Threaded Rods

These 18-8 stainless steel threaded rods have good chemical resistance and may be mildly magnetic.

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

18-8 Stainless Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2
12 mm	0.4	70,000	Not Rated	DIN 976	10	000000000	000000
16 mm	0.4	70,000	Not Rated	DIN 976	10	000000000	00000
20 mm	0.4	70,000	Not Rated	DIN 976	10	000000000	00000
25 mm	0.4	70,000	Not Rated	DIN 976	10	000000000	00000
300 mm	0.4	70,000	Not Rated	DIN 976	1	000000000	0000
500 mm	0.4	70,000	Not Rated	DIN 976	1	000000000	0000
1 m	0.4	70,000	Not Rated	DIN 976	1	000000000	00000
2 m	0.4	70,000	Not Rated	DIN 976	1	000000000	00000

Metric Super-Corrosion-Resistant 316 Stainless Steel Threaded Rods

These 316 stainless steel threaded rods are more corrosion resistant than 18-8 and 410 stainless steel threaded rods and have excellent resistance to chemicals and salt water. They may be mildly magnetic. All meet DIN 976 specifications for dimensional standards.

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

316 Stainless Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2
12 mm	0.4	70,000	Not Rated	DIN 976	5	000000000	00000
25 mm	0.4	70,000	Not Rated	DIN 976	5	000000000	0000
300 mm	0.4	70,000	Not Rated	DIN 976	1	000000000	0000
500 mm	0.4	70,000	Not Rated	DIN 976	1	000000000	0000
1 m	0.4	70,000	Not Rated	DIN 976	1	000000000	00000
2 m	0.4	70,000	Not Rated	DIN 976	1	000000000	00000

Metric Brass Threaded Rods

These brass threaded rods are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

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

Brass
Lg., m	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M2
1	0.4	50,000	Rockwell B55	DIN 976	000000000	000000

Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread type, thread size, thread pitch, and number of thread starts.

Nuts are acetal plastic; they have good wear and corrosion resistance.

303 and 304 stainless steel lead screws have good corrosion resistance.

Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

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

Lead Screws—Right-Hand Threaded

303 Stainless Steel
Thread Size	Thread Pitch, mm	Lg., mm	No. of Thread Starts	Thread Type	Speed Ratio	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
M2	0.5	50	2	Metric Rounded Trapezoidal	2:1	1	±0.089 mm per 300 mm	Brinell 160	90,000	000000000	000000
M2	0.5	100	2	Metric Rounded Trapezoidal	2:1	1	±0.089 mm per 300 mm	Brinell 160	90,000	000000000	00000

Externally Threaded Nuts—Right-Hand Threaded

										External Thread
	Thread Size	Thread Pitch, mm	Lg.	Dia.	Hex Wd.	No. of Thread Starts	Thread Type	Speed Ratio	Travel Distance per Turn, mm	Size	Lg.	Tensile Strength, psi	Dynamic Thrust Load Cap., lbs.	Temperature Range, °F		Each
Acetal Plastic
B	M2	0.5	11/16"	0.297"	7/16"	2	Metric Rounded Trapezoidal	2:1	1	3/8"-24	3/16"	8,000	10	-40° to 185°	000000000	000000

Flange Nuts—Right-Hand Threaded

					Flange
	Thread Size	Thread Pitch, mm	Lg.	Dia.	Wd.	Ht.	Thick.	No. of Thread Starts	Thread Type	Speed Ratio	Travel Distance per Turn, mm	Mounting Hole Ctr.-to-Ctr.	Tensile Strength, psi	Dynamic Thrust Load Cap., lbs.	Temp. Range, °F		Each
Acetal Plastic
C	M2	0.5	1/2"	0.297"	3/4"	13/32"	1/8"	2	Metric Rounded Trapezoidal	2:1	1	39/64"	8,000	10	-40° to 185°	000000000	000000

Metric Ultra-Precision Lead Screws and Nuts

Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread type and thread size.

Nuts are acetal plastic; they have good wear and corrosion resistance.

303 stainless steel lead screws have good corrosion resistance.

Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

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

Lead Screws—Right-Hand Threaded

303 Stainless Steel
Thread Size	Thread Pitch, mm	Lg., mm	No. of Thread Starts	Thread Type	Speed Ratio	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
M2	0.5	50	1	Metric Rounded Trapezoidal	1:1	0.5	±0.089 mm per 300 mm	Brinell 160	90,000	0000000	000000
M2	0.5	100	1	Metric Rounded Trapezoidal	1:1	0.5	±0.089 mm per 300 mm	Brinell 160	90,000	0000000	00000

Externally Threaded Nuts—Right-Hand Threaded

										External Thread
	Thread Size	Thread Pitch, mm	Lg.	Dia.	Hex Wd.	No. of Thread Starts	Thread Type	Speed Ratio	Travel Distance per Turn, mm	Size	Lg.	Tensile Strength, psi	Dynamic Thrust Load Cap., lbs.	Temperature Range, °F		Each
Acetal Plastic
A	M2	0.5	11/16"	0.297"	7/16"	1	Metric Rounded Trapezoidal	1:1	0.5	3/8"-24	3/16"	8,000	10	-40° to 185°	0000000	000000

Flange Nuts—Right-Hand Threaded

					Flange
	Thread Size	Thread Pitch, mm	Lg.	Dia.	Wd.	Ht.	Thick.	No. of Thread Starts	Thread Type	Speed Ratio	Travel Distance per Turn, mm	Mounting Hole Ctr.-to-Ctr.	Tensile Strength, psi	Dynamic Thrust Load Cap., lbs.	Temperature Range, °F		Each
Acetal Plastic
B	M2	0.5	1/2"	0.297"	3/4"	13/32"	1/8"	1	Metric Rounded Trapezoidal	1:1	0.5	39/64"	8,000	10	-40° to 185°	0000000	000000

About Threaded Studs and Rods

Selecting Compatible Lead Screws and Nuts

Metric Low-Strength Steel Threaded Rods

Metric 18-8 Stainless Steel Threaded Rods

Metric Super-Corrosion-Resistant 316 Stainless Steel Threaded Rods

Metric Brass Threaded Rods

Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

Metric Ultra-Precision Lead Screws and Nuts