UNS Threaded Rods | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Fastener Strength Grade/Class

Thread Spacing

Thread Direction

Threading

Tensile Strength

10,000 psi to 19,999 psi

40,000 psi to 99,999 psi

100,000 psi or greater

Not Rated

Fastener Strength Rating

Finish

Zinc Yellow-Chromate Plated

Nut Type

Thread Type

Metric Rounded Trapezoidal

Component

Ball Screw with One Machined End

Performance

Hardness

Rockwell C58 to Rockwell C62

Specifications Met

Thread Fit

Metric Trapezoidal Class 7H

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

Thread Pitch

4 mm

5 mm

7 mm

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Not Compliant

Number of Thread Starts

Dynamic Thrust Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 9,999 lb.

10,000 lb. to 19,999 lb.

20,000 lb. or greater

Not Rated

Travel Distance per Turn

179 Products

Threaded Rods

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

Medium-Strength Steel

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

With tensile strengths from 110,000 psi to 125,000 psi, these rods are strong enough for most industrial applications, such as anchoring machinery and connecting pipe flanges. They are about twice as strong as low-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also medium-strength steel.

Zinc-Yellow-Chromate-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.

	Lg.	Hardness	Specs. Met		Each
Zinc-Yellow-Chromate-Plated Steel







		1"-14

		1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000


		3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
		6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000


		Steel







						1"-14

						4"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000


						6"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						8"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						10"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						1 1/2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						2 1/2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						4 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000
						5 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000


						6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000
						8 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000
						12 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000




								1 5/8"-5 1/2

								1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000


								3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000
								6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000




										1 7/8"-5

										1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	00000


3 ft.										125,000	ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000
6 ft.	125,000									ASTM Grade B7	Rockwell C35	ASTM A193	000000000	000000

High-Strength Steel

With a tensile strength of 150,000 psi, these rods are strong enough to stabilize steel frameworks and structural supports, such as I-beams. They are about 25% stronger than medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also high-strength steel.

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

Black-Oxide Steel—Typically chosen for their appearance, these rods have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

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

	Lg.	Tensile Strength, psi	Fastener Strength Grade/Class	Hardness	Specs. Met		Each
Zinc-Yellow-Chromate-Plated Steel







				1"-14

				4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	0000000	000000


				6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	0000000	00000
				1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	00000
				2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	00000
				3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	000000
				6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	0000000	000000


				Black-Oxide Steel







								1"-14

								4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	0000000	00000


								6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	0000000	00000
								1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	00000
								2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	00000
								3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	000000
								6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	00000000	000000


								Steel







												1"-14

												4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000


												6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000
												8"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000
												10"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000
												1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000
												1 1/2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000
												2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	00000
												3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000
												4 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000
												6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000




	1 5/8"-5 1/2

	3 ft.												150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000


	6 ft.	150,000											ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000




			1 7/8"-5

			3 ft.										150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000


			6 ft.										150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	000000000	000000

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.

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

	Pkg. Qty.		Pkg.
Zinc-Plated Steel







	1"-14

	1	50,000	Rockwell B61	1	000000000	000000


	2	50,000	Rockwell B61	1	000000000	00000
	3	50,000	Rockwell B61	1	000000000	00000
	6	50,000	Rockwell B61	1	000000000	00000


	Steel







					1"-14

					1	50,000	Rockwell B61	1	000000000	00000


					2	50,000	Rockwell B61	1	000000000	00000
					3	50,000	Rockwell B61	1	000000000	00000
					6	50,000	Rockwell B61	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.

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







	1"-14

	4"	70,000	—	Rockwell B70	—	1	000000000	000000


	6"	70,000	—	Rockwell B70	—	1	000000000	00000
	8"	70,000	—	Rockwell B70	—	1	000000000	00000
	1 ft.	70,000	—	Rockwell B70	—	1	000000000	00000
	1 ft.	70,000	ASTM Grade B8	Not Rated	ASTM A193	1	000000000	00000
	2 ft.	70,000	—	Rockwell B70	—	1	000000000	00000
	2 ft.	70,000	ASTM Grade B8	Not Rated	ASTM A193	1	000000000	00000
	3 ft.	70,000	—	Rockwell B70	—	1	000000000	000000
	3 ft.	70,000	ASTM Grade B8	Not Rated	ASTM A193	1	000000000	000000
	4 ft.	70,000	—	Rockwell B70	—	1	000000000	00000
	6 ft.	70,000	—	Rockwell B70	—	1	000000000	000000


	6 ft.	70,000	ASTM Grade B8	Not Rated	ASTM A193	1	000000000	000000

Precision Acme Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. 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, please select components that have the same thread direction, thread size, and number of thread starts.

Externally Threaded Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

Acetal—Acetal nuts have good wear and corrosion resistance.

PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.

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

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength, psi	Dynamic Thrust Load Cap., lb.	Temp., ° F		Each
360 Brass



		1/4"-20	5/8"	0.688"	Acme	1:1	1	0.05"	9/16"-18	3/8"	Acme Class 2C	Brinell 141	50,000	310	—	000000000	000000


		1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 141	50,000	1,250	—	000000000	00000
		3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Brinell 141	50,000	2,800	—	000000000	00000
		3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.166"	1"-18	1/2"	Acme Class 2C	Brinell 141	50,000	2,800	—	000000000	00000
		3/4"-8	1 1/4"	1.125"	Acme	1:1	1	0.125"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800	—	000000000	00000
		3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Brinell 141	50,000	2,800	—	000000000	00000
		3/4"-16	1 1/4"	1.125"	Acme	1:1	1	0.063"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800	—	000000000	00000
		1 1/2"-10	2 19/64"	2.125"	Acme	1:1	1	0.1"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 141	50,000	11,250	—	000000000	000000


		673 Bronze



				1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000


				5/8"-5	1"	1.125"	Acme	1:1	1	0.2"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				5/8"-8	1"	1.125"	Acme	1:1	1	0.125"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				5/8"-10	1"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.167"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1"-4	1 1/2"	1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1"-5	1 1/2"	1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1"-6	1 1/2"	1.5"	Acme	1:1	1	0.167"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1"-10	1 1/2"	1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000


				1 1/4"-4	1 3/4"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000
				1 1/4"-5	1 3/4"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000
				1 1/2"-4	2 19/64"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000
				1 1/2"-5	2 19/64"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000
				2"-4	2 3/4"	2.75"	Acme	1:1	1	0.25"	2 35/64"-18	7/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000
				2"-5	2 3/4"	2.75"	Acme	1:1	1	0.2"	2 35/64"-18	7/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000
				2 1/2"-4	3 3/8"	3.375"	Acme	1:1	1	0.25"	3 9/64"-12	1 9/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000


				Acetal



						3/4"-8	1 1/4"	1.125"	Acme	1:1	1	0.125"	1"-18	1/2"	Acme Class 2C	Rockwell R120	8,000	1,400	-40 to 190	000000000	00000


						3/4"-16	1 1/4"	1.125"	Acme	1:1	1	0.063"	1"-18	1/2"	Acme Class 2C	Rockwell R120	8,000	1,400	-40 to 190	000000000	00000
						1 1/2"-10	2 19/64"	2.125"	Acme	1:1	1	0.1"	1 31/32"-18	13/16"	Acme Class 2C	Rockwell R120	8,000	5,600	-40 to 190	000000000	000000


						PEEK



								1/4"-20	5/8"	0.688"	Acme	1:1	1	0.05"	9/16"-18	3/8"	Acme Class 2C	Not Rated	16,000	150	-40 to 525	000000000	000000


								1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Not Rated	16,000	620	-40 to 525	000000000	000000
								3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Not Rated	16,000	1,400	-40 to 525	000000000	000000
								3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.166"	1"-18	1/2"	Acme Class 2C	Not Rated	16,000	1,400	-40 to 525	000000000	000000
3/4"-10								1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Not Rated	16,000	1,400	-40 to 525	000000000	000000
1 1/4"-5	1 3/4"							2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Not Rated	16,000	3,900	-40 to 525	000000000	000000

Externally Threaded Nuts—Left-Hand Thread

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

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

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
360 Brass



		3/4"-8	1 1/4"	1.125"	Acme	1:1	1	0.125"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800	000000000	000000


		3/4"-16	1 1/4"	1.125"	Acme	1:1	1	0.063"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800	000000000	00000
		1 1/2"-10	2 19/64"	2.125"	Acme	1:1	1	0.1"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	11,250	000000000	000000


		673 Bronze



				1/2"-10	3/4"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000


				5/8"-5	1"	1.125"	Acme	1:1	1	0.2"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				5/8"-8	1"	1.125"	Acme	1:1	1	0.125"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				5/8"-10	1"	1.125"	Acme	1:1	1	0.1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				3/4"-5	1 1/4"	1.125"	Acme	1:1	1	0.2"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				3/4"-6	1 1/4"	1.125"	Acme	1:1	1	0.167"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				3/4"-10	1 1/4"	1.125"	Acme	1:1	1	0.1"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				1"-4	1 1/2"	1.5"	Acme	1:1	1	0.25"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				1"-5	1 1/2"	1.5"	Acme	1:1	1	0.2"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				1"-6	1 1/2"	1.5"	Acme	1:1	1	0.167"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				1"-10	1 1/2"	1.5"	Acme	1:1	1	0.1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000


				1 1/4"-4	1 3/4"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	000000
				1 1/4"-5	1 3/4"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	000000
				1 1/2"-4	2 19/64"	2.125"	Acme	1:1	1	0.25"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	000000
				1 1/2"-5	2 19/64"	2.125"	Acme	1:1	1	0.2"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	000000
				2"-4	2 3/4"	2.75"	Acme	1:1	1	0.25"	2 35/64"-18	7/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	000000

Flanges

Image of Attribute. Front orientation. Contains Annotated.

Thread onto an externally threaded acme nut to create a custom flange nut.

1117 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

Black-Oxide 1117 Carbon Steel—Black-oxide carbon steel flanges have mild corrosion resistance in dry environments and a dark surface color.

1215 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

303 Stainless Steel—303 stainless steel flanges have good corrosion resistance.

	Flange Dia.	Flange Thk.	Bolt Circle Dia.	Flange Hardness		Each
1117 Carbon Steel



	1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 156	000000000	000000


	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 156	000000000	00000
	2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 156	000000000	00000
	3 9/64"-12	5 3/8"	1 37/64"	4 3/8"	Brinell 156	000000000	000000


	Black-Oxide 1117 Carbon Steel



			9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 135	00000000	00000


			15/16"-16	2 39/64"	17/32"	2 3/32"	Brinell 135	00000000	00000
			1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 135	00000000	00000
			1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 135	00000000	00000


			1215 Carbon Steel



					9/16"-18	1 39/64"	13/32"	1 1/8"	Not Rated	000000000	00000


					15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	000000000	00000
					1"-18	2 5/8"	17/32"	2 3/32"	Not Rated	000000000	00000


					303 Stainless Steel



							9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 140	0000000	00000


							15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	0000000	00000
							1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	0000000	00000
							1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	0000000	00000
							1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	0000000	000000
							2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 140	0000000	000000

Ball Screws and Nuts


	A

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread direction and size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Ball Screws with One Machined End—Right-Hand Threaded

Ball screws with one machined end fit into an end support and are ready to connect to a motor. To adjust the length, the non-machined end can be cut to size.

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

Root Diameter—Root diameter indicates the diameter the ball screw will be after machining away the threads.

								Machined End			Keyway
	Thread Size	Lg., ft.	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Root Dia.	Shoulder Lg.	Overall Lg.	Thread Size	Dia.	Lg.	Wd.	Hardness	Tensile Strength, psi	Temp. Range, ° F		Each
Alloy Steel



		5/8"-5	2	1	0.2"	±0.007"/1 ft.	0.5"	2"	3 19/64"	0.469"-32	3/8"	1 1/4"	1/8"	Rockwell C56	72,500	-65 to 300	00000000	0000000


		5/8"-5	4	1	0.2"	±0.007"/1 ft.	0.5"	2"	3 19/64"	0.469"-32	3/8"	1 1/4"	1/8"	Rockwell C56	72,500	-65 to 300	00000000	000000
		5/8"-5	6	1	0.2"	±0.007"/1 ft.	0.5"	2"	3 19/64"	0.469"-32	3/8"	1 1/4"	1/8"	Rockwell C56	72,500	-65 to 300	00000000	000000
		3/4"-5	2	1	0.2"	±0.007"/1 ft.	0.65"	2 3/16"	3 3/16"	0.586"-32	1/2"	1"	1/8"	Rockwell C56	92,500	-65 to 300	00000000	000000
		3/4"-5	4	1	0.2"	±0.007"/1 ft.	0.65"	2 3/16"	3 3/16"	0.586"-32	1/2"	1"	1/8"	Rockwell C56	92,500	-65 to 300	00000000	000000
		3/4"-5	6	1	0.2"	±0.007"/1 ft.	0.65"	2 3/16"	3 3/16"	0.586"-32	1/2"	1"	1/8"	Rockwell C56	92,500	-65 to 300	00000000	000000
		1"-4	2	1	0.25"	±0.007"/1 ft.	0.84"	2 23/32"	4 1/32"	0.781"-32	5/8"	1.13"	0.188"	Rockwell C56	122,000	-65 to 300	00000000	000000
		1"-4	4	1	0.25"	±0.007"/1 ft.	0.84"	2 23/32"	4 1/32"	0.781"-32	5/8"	1.13"	0.188"	Rockwell C56	122,000	-65 to 300	00000000	000000
		1"-4	6	1	0.25"	±0.007"/1 ft.	0.84"	2 23/32"	4 1/32"	0.781"-32	5/8"	1.13"	0.188"	Rockwell C56	122,000	-65 to 300	00000000	00000000

Externally Threaded Ball Nuts—Right-Hand Threaded

Image of Product. A. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Ball Nuts, Externally Threaded Nut, Style A.

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

	Thread Size	Lg.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
Black-Oxide Alloy Steel



	A	3/8"-8	1"	3/4"	1	0.125"	11/16"-28	Rockwell C56	170	0.015"	-65 to 300	00000000	0000000


	A	1 1/2"-2	5 9/16"	2 5/8"	1	0.5"	2 23/64"-18	Rockwell C56	12,900	0.015"	-65 to 300	00000000	000000
	A	1 1/2"-4	3"	2 3/32"	1	0.25"	1 31/32"-18	Rockwell C56	4,250	0.015"	-65 to 300	00000000	000000
	A	2 1/4"-2	6 11/16"	3 3/8"	1	0.5"	3.137"-12	Rockwell C58 to Rockwell C62	21,306	0.015"	-65 to 300	00000000	00000000

Left-Hand Threaded Rods

Turn these rods to the left to tighten. Use them with left-hand nuts to prevent counterclockwise-moving parts from loosening.

Medium-Strength Steel

Image of Product. Front orientation. Contains Annotated. Threaded Rods. Left-Hand Threaded Rods.

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

	Hardness	Specs. Met		Each
Steel







	1"-14

	1	125,000	ASTM Grade B7	Rockwell C34	ASTM A193	000000000	000000


	3	125,000	ASTM Grade B7	Rockwell C34	ASTM A193	000000000	00000
	6	125,000	ASTM Grade B7	Rockwell C34	ASTM A193	000000000	000000

Coupling Nuts

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

Low-Strength Steel

Rated Grade 2 or lower, these are about half as strong as medium-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

						Each
	Thread Size	Lg.	Wd.	Threading		1-9	10-49	50-Up
Zinc-Plated Steel



		1"-14	2 3/4"	1 3/8"	Fully Threaded	000000000	000000	000000	000000

Medium-Strength Steel

These Grade 5 or Class 8 nuts are about twice as strong as low-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

							Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading		1-9	10-49	50-Up
Zinc-Plated Steel



		1"-14	2 3/4"	1 3/8"	SAE Grade 5	Fully Threaded	000000000	000000	000000	000000

High-Strength Steel

Rated Grade 8 or Class 10, these are about 25% stronger than medium-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

							Each
	Thread Size	Lg.	Wd.	Fastener Strength Grade/Class	Threading		1-9	10-49	50-Up
Zinc-Plated Steel



		1"-14	2 3/4"	1 1/2"	SAE Grade 8	Fully Threaded	000000000	000000	000000	000000

Fast-Travel Precision Acme Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. The threads have a tight thread fit for accurate, repeatable starts and stops. Pair with a motor in automated motion and positioning applications. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.

Externally Threaded Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

PET—PET plastic nuts are lightweight and corrosion resistant.

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

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.	Temp., ° F		Each
360 Brass



		3/4"-8	1 1/4"	1.125"	Acme	2:1	2	0.25"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800	—	000000000	000000


		673 Bronze



				1/2"-8	3/4"	1.125"	Acme	2:1	2	0.25"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000


				1/2"-8	3/4"	1.125"	Stub Acme	8:1	8	1"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1/2"-10	3/4"	1.125"	Acme	2:1	2	0.2"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1/2"-10	3/4"	1.125"	Stub Acme	5:1	5	0.5"	15/16"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				3/4"-6	1 1/4"	1.125"	Acme	2:1	2	0.333"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				3/4"-8	1 1/4"	1.125"	Acme	4:1	4	0.5"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1"-10	1 1/2"	1.5"	Stub Acme	10:1	10	1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	00000
				1 1/2"-4	2 19/64"	2.125"	Acme	2:1	2	0.5"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	—	000000000	000000


				PET



						3/4"-8	1 1/4"	1.125"	Acme	4:1	4	0.5"	1"-18	1/2"	Acme Class 2C	Not Rated	Not Rated	1,450	15 to 175	000000000	00000

Externally Threaded Nuts—Left-Hand Thread

Combine externally threaded nuts with a flange to create a custom flange nut.

360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.

673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.

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

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Size	Lg.	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
360 Brass



		3/4"-8	1 1/4"	1.125"	Acme	2:1	2	0.25"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	2,800	000000000	000000


		673 Bronze



				3/4"-6	1 1/4"	1.125"	Acme	2:1	2	0.333"	1"-18	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000


				1"-10	1 1/2"	1.5"	Stub Acme	10:1	10	1"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	00000
				1 1/2"-4	2 19/64"	2.125"	Acme	2:1	2	0.5"	1 31/32"-18	13/16"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	000000000	000000

Flanges

Thread onto an externally threaded acme nut to create a custom flange nut.

1117 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

1215 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.

303 Stainless Steel—303 stainless steel flanges have good corrosion resistance.

	Flange Dia.	Flange Thk.	Bolt Circle Dia.	Flange Hardness		Each
1117 Carbon Steel



	1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 156	000000000	000000


	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 156	000000000	00000


	1215 Carbon Steel



			15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	000000000	00000


			1"-18	2 5/8"	17/32"	2 3/32"	Not Rated	000000000	00000


			303 Stainless Steel



					15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	0000000	00000


					1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	0000000	00000
					1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	0000000	00000
					1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	0000000	000000

Metric Precision Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. 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 direction, size, and number of thread starts.

Externally Threaded Nuts—Right-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.

Manganese Bronze—Manganese bronze nuts have good strength and wear resistance.

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

								External Thread
	Thread Size	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Size	Lg.	Thread Fit	Hardness	Tensile Strength, psi	Dynamic Thrust Load Cap., lb.	Specs. Met		Each
Manganese Bronze



		M20 × 4 mm	1 1/4"	1.125"	Metric Trapezoidal	1:1	1	4	1"-18	1/2"	Metric Trapezoidal Class 7H	Brinell 126	75,000	3,100	DIN 103	0000000	000000


		M28 × 5 mm	1 3/4"	2.125"	Metric Trapezoidal	1:1	1	5	1 31/32"-18	13/16"	Metric Trapezoidal Class 7H	Brinell 126	75,000	6,100	DIN 103	0000000	000000
		M40 × 7 mm	2 19/64"	2.125"	Metric Trapezoidal	1:1	1	7	1 31/32"-18	13/16"	Metric Trapezoidal Class 7H	Brinell 126	75,000	12,300	DIN 103	0000000	000000

Corrosion-Resistant Ball Screws and Nuts


	Ball Nuts, Externally Threaded Nut, Style A

Suitable for use in harsh environments, these ball screws and nuts are made of stainless steel. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Externally Threaded Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Corrosion-Resistant Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style A.

Style A

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

	Thread Size	Lg.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
17-4 PH Stainless Steel



	A	3/8"-8	1"	3/4"	1	0.125"	0.664"-32	Rockwell C38	25	0.007"	-65 to 300	000000	0000000

Fast-Travel Ball Screws and Nuts


	Ball Nuts, Externally Threaded Nut, Style C

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Externally Threaded Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style C.

Style C

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

Wipers—Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.

	Ball Screw Nuts															Wipers
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each		Each
Black-Oxide Alloy Steel



		C	1 1/2"-2	3 3/4"	2 1/4"	2 1/4"	2 5/8"	2	1"	2 1/4"-20	Rockwell C56	8,000	0.015"	-65 to 300	00000000	0000000	0000000	0000000