M2.5 Shafts | McMaster-Carr

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Threaded on Both Ends

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15 mm

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32 mm

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0.45 mm

Mounting Hole Center-to-Center

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M2.5

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39 Products

Easy-Access Base-Mount Linear Shaft Supports

Made with two pieces, these shaft supports secure your shaft parallel to your mounting surface and make it easy to access the shaft without having to slide it out or uninstall the support. Use these supports when working with light to medium loads where shaft alignment is not critical. These supports are machined to have flat, square surfaces, so they can be used to align other supports and parts in your system. Tighten the included clamping screws to secure the shaft.

Tee

Image of Product. Front orientation. Contains Annotated. Linear Shaft Supports. Easy-Access Base-Mount Linear Shaft Supports, Tee.

Tee supports have mounting flanges on the side. Mount these supports to a surface from either the top or bottom using the unthreaded holes.

Anodized 6061 Aluminum—Aluminum supports are lightweight and resist corrosion.

		Overall, mm					Mounting Hole
	For Shaft Dia., mm	Lg.	Wd.	Ht.	Ctr. Ht., mm	Ctr. Ht. Tolerance, mm	No. of	Ctr.-to-Ctr., mm	Dia., mm	Clamping Screw Thread Size	Fabrication		Each
Black Anodized 6061 Aluminum



		8	32	10	23	15	-0.05 to 0	2	25	4.5	M2.5	Machined	00000000	000000

Female Threaded Hex Standoffs

Threaded on

Both Ends

Stack male-threaded components and create a clean, flush connection between them. To securely tighten standoffs, grip the flat sides of the hex body with a wrench.

Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these standoffs resist rusting. They're strong enough for most jobs, but won't withstand stress as well as steel.

Zinc-Plated Carbon Steel—Best for dry environments since moisture will cause these standoffs to rust.

Lightweight Aluminum—One-third the weight of steel, these standoffs are commonly used in applications with weight limitations. They resist rust as well as stainless steel, but they're not as strong.

							Each
	Lg., mm	Hex Size, mm	Threading	Min. Thread Lg., mm	Specs. Met		1-99	100-499	500-Up
Corrosion-Resistant 18-8 Stainless Steel







				M2.5 × 0.45 mm

				10	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	00000	00000	00000


				12	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000
				14	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000
				16	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000
				19	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000
				20	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000
				25	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000
				37	4.5	Threaded on Both Ends	4.8	ASTM A582	000000000	0000	0000	0000


				Zinc-Plated Carbon Steel







								M2.5 × 0.45 mm

								19	4.5	Threaded on Both Ends	4.7	ASTM A108	000000000	0000	0000	0000


								20	4.5	Threaded on Both Ends	4.7	ASTM A108	000000000	0000	0000	0000
								25	4.5	Threaded on Both Ends	4.7	ASTM A108	000000000	0000	0000	0000
								37	4.5	Threaded on Both Ends	4.7	ASTM A108	000000000	0000	0000	0000


								Lightweight Aluminum







												M2.5 × 0.45 mm

												16	4.5	Threaded on Both Ends	4.8	—	000000000	0000	0000	0000


												19	4.5	Threaded on Both Ends	4.8	—	000000000	0000	0000	0000
												20	4.5	Threaded on Both Ends	4.8	—	000000000	0000	0000	0000
												25	4.5	Threaded on Both Ends	4.8	—	000000000	0000	0000	0000
												37	4.5	Threaded on Both Ends	4.8	—	000000000	0000	0000	0000

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications, from mounting I-beams to suspending light fixtures.

Low-Strength Steel

With a tensile strength of 50,000 psi or 60,000 psi, these rods are often used to suspend light fixtures, cable trays, and conduit from ceilings. They're about half the strength of medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also low-strength steel.

Zinc-Plated Steel—The most common choice for areas with occasional exposure to moisture.

	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel







	M2.5 × 0.45 mm

	50 mm	50,000	Rockwell B49	DIN 976	1	000000000	00000


	300 mm	50,000	Rockwell B49	DIN 976	1	000000000	00000
	1 m	50,000	Rockwell B49	DIN 976	1	000000000	00000

Stainless Steel

More corrosion resistant than steel rods and comparable in strength to low-strength steel.

18-8 Stainless Steel—The choice for wet and outdoor environments, these rods resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these rods won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	M2.5 × 0.45 mm

	12 mm	70,000	Not Rated	DIN 976	10	000000000	000000


	16 mm	70,000	Not Rated	DIN 976	10	000000000	00000
	20 mm	70,000	Not Rated	DIN 976	10	000000000	00000
	25 mm	70,000	Not Rated	DIN 976	10	000000000	00000
	50 mm	70,000	Not Rated	DIN 976	10	000000000	00000
	300 mm	70,000	Not Rated	DIN 976	1	000000000	0000
	500 mm	70,000	Not Rated	DIN 976	1	000000000	0000
	1 m	70,000	Not Rated	DIN 976	1	000000000	00000
	2 m	70,000	Not Rated	DIN 976	1	000000000	00000


	Highly Corrosion-Resistant 316 Stainless Steel







					M2.5 × 0.45 mm

					12 mm	70,000	Not Rated	DIN 976	5	000000000	0000


					25 mm	70,000	Not Rated	DIN 976	5	000000000	00000
					300 mm	70,000	Not Rated	DIN 976	1	000000000	0000
					500 mm	70,000	Not Rated	DIN 976	1	000000000	0000
					1 m	70,000	Not Rated	DIN 976	1	000000000	00000

Brass

Brass—Conductive and nonmagnetic, brass rods are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures.

	Specs. Met		Each
Brass







	M2.5 × 0.45 mm

	1	50,000	Rockwell B55	DIN 976	000000000	000000

Female Threaded Hex Plastic Standoffs

Threaded on

Both Ends

Lightweight, nonconductive, and naturally rust-resistant. Screw these standoffs onto panels and equipment covers to separate, position and connect components. To securely tighten standoffs, grip the flat sides of the hex body with a wrench.

Nylon 6/6—Lightweight and stand up to daily wear and tear. Nylon swells and weakens when exposed to moisture, so these standoffs are best for dry environments.

								Each
	Lg., mm	Hex Size, mm	Threading	Min. Thread Lg., mm	Temp. Range, ° F	Specs. Met		1-99	100-499	500-Up
Nylon 6/6







				M2.5 × 0.45 mm

				20	4.5	Threaded on Both Ends	4.7	-40 to 250	ASTM D4066	000000000	00000	00000	00000


				25	4.5	Threaded on Both Ends	4.7	-40 to 250	ASTM D4066	000000000	0000	0000	0000
				37	4.5	Threaded on Both Ends	4.7	-40 to 250	ASTM D4066	000000000	0000	0000	0000