12-24 Threaded Rods | McMaster-Carr

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40,000 psi to 99,999 psi

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36 Products

Threaded Rods

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

Low-Strength Steel

Image of Product. Front orientation. Threaded Rods. Threaded Rods.

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.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Pkg. Qty.		Pkg.
Zinc-Plated Steel







	12-24

	1"	50,000	Rockwell B61	10	000000000	000000


	2"	50,000	Rockwell B61	10	000000000	00000
	1 ft.	50,000	Rockwell B61	1	000000000	0000
	2 ft.	50,000	Rockwell B61	1	000000000	0000
	3 ft.	50,000	Rockwell B61	1	000000000	0000
	6 ft.	50,000	Rockwell B61	1	000000000	0000


	Steel







					12-24

					1 1/2"	50,000	Rockwell B61	10	000000000	0000


					2"	50,000	Rockwell B61	10	000000000	00000
					3"	50,000	Rockwell B61	10	000000000	00000
					1 ft.	50,000	Rockwell B61	1	000000000	0000
					2 ft.	50,000	Rockwell B61	1	000000000	0000
					3 ft.	50,000	Rockwell B61	1	000000000	0000
					6 ft.	50,000	Rockwell B61	1	000000000	0000

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.

Super-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.

	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	12-24

	1"	70,000	Rockwell B70	10	000000000	00000


	2"	70,000	Rockwell B70	10	000000000	00000
	3"	70,000	Rockwell B70	10	000000000	00000
	4"	70,000	Rockwell B70	10	000000000	00000
	1 ft.	70,000	Rockwell B70	1	000000000	0000
	2 ft.	70,000	Rockwell B70	1	000000000	0000
	3 ft.	70,000	Rockwell B70	1	000000000	0000
	6 ft.	70,000	Rockwell B70	1	000000000	00000


	Super-Corrosion-Resistant 316 Stainless Steel







					12-24

					1"	70,000	Rockwell B70	10	000000000	00000


					2"	70,000	Rockwell B70	10	000000000	00000
					3 ft.	70,000	Rockwell B70	1	000000000	00000
					6 ft.	70,000	Rockwell B70	1	000000000	00000

Aluminum

6061 Aluminum—One-third the weight of steel, these rods are commonly used in automation and other applications with weight limits. They're an alternative to stainless steel for rust resistance but are not as strong.

	Pkg. Qty.		Pkg.
6061 Aluminum







	12-24

	1"	40,000	Rockwell B40	25	000000000	000000


	3 ft.	40,000	Rockwell B40	1	000000000	00000
	6 ft.	40,000	Rockwell B40	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.

	Pkg. Qty.		Pkg.
Brass







	12-24

	1"	50,000	Rockwell B55	10	000000000	000000


	2"	50,000	Rockwell B55	10	000000000	00000
	3 ft.	50,000	Rockwell B55	1	000000000	00000
	6 ft.	50,000	Rockwell B55	1	000000000	00000

Coupling Nuts

Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.

Corrosion-Resistant Stainless Steel

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

						Each
	Thread Size	Lg.	Wd.	Threading		1-9	10-Up
18-8 Stainless Steel



		12-24	3/4"	3/8"	Fully Threaded	000000000	00000	00000

Brass

Brass—With a warm, polished look, these nuts are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. It is also softer than other metals, so it's easier to thread together.

						Each
	Thread Size	Lg.	Wd.	Threading		1-9	10-Up
Brass



		12-24	3/4"	3/8"	Fully Threaded	000000000	000000	00000

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

18-8 Stainless Steel—18-8 stainless steel adapters have good corrosion resistance.

316 Stainless Steel—316 stainless steel adapters have the best corrosion resistance. They stand up to wet environments, just like 18-8 stainless steel adapters, but unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and harsh chemicals.

			Thread Lg.		Thread Fit		Hex				Each
	Thread Size (A)	Thread Size (B)	(A)	(B)	(A)	(B)	Size	Length	Hardness		1-9	10-Up
18-8 Stainless Steel



		12-24	12-24	1/2"	1/2"	Unified Standard Class 2B	Unified Standard Class 2B	3/8"	2"	Rockwell B80	000000000	000000	000000


		316 Stainless Steel



				12-24	12-24	1/2"	1/2"	Unified Standard Class 2B	Unified Standard Class 2B	3/8"	2"	Rockwell B80	000000000	00000	00000