UNS Threaded Rods | McMaster-Carr

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Material

Fastener Strength Grade/Class

Thread Spacing

Thread Direction

Threading

Fastener Strength Rating

Tensile Strength

10,000 psi to 19,999 psi

40,000 psi to 99,999 psi

100,000 psi or greater

Not Rated

Finish

Black Oxide

Zinc Plated

Zinc Yellow-Chromate Plated

Thread Type

Metric Rounded Trapezoidal

Nut Type

Component

Ball Screw with One Machined End

Hardness

Rockwell C58 to Rockwell C62

Performance

Thread Fit

Metric Trapezoidal Class 7H

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

Thread Pitch

Specifications Met

DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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Compliant with Exemptions

Not Compliant

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

Number of Thread Starts

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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	99086A372	000000


		3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	99086A151	00000
		6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	99086A206	000000


		Steel







						1"-14

						4"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A522	00000


						6"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A523	00000
						8"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A524	00000
						10"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A525	00000
						1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A412	00000
						1 1/2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A188	00000
						2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A818	00000
						2 1/2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A189	00000
						3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A114	00000
						4 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A153	00000
						5 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A154	00000


						6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A214	000000
						8 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A155	000000
						12 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A314	000000




								1 5/8"-5 1/2

								1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A191	00000


								3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A192	000000
								6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A193	000000




										1 7/8"-5

										1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A194	00000


3 ft.										125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A195	000000
6 ft.	125,000									ASTM Grade B7	Rockwell C35	ASTM A193	98957A196	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	3313N75	000000


				6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N76	00000
				1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N827	00000
				2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N828	00000
				3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N829	000000
				6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N83	000000


				Black-Oxide Steel







								1"-14

								4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3314N69	00000


								6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3314N71	00000
								1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3314N781	00000
								2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3314N782	00000
								3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3314N783	000000
								6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3314N784	000000


								Steel







												1"-14

												4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A227	00000


												6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A228	00000
												8"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A288	00000
												10"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A381	00000
												1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A229	00000
												1 1/2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A382	00000
												2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A230	00000
												3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A231	000000
												4 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A289	000000
												6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A332	000000




	1 5/8"-5 1/2

	3 ft.												150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A693	000000


	6 ft.	150,000											ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A694	000000




			1 7/8"-5

			3 ft.										150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A703	000000


			6 ft.										150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A704	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	90034A320	000000


	2	50,000	Rockwell B61	1	90032A038	00000
	3	50,000	Rockwell B61	1	98842A038	00000
	6	50,000	Rockwell B61	1	98915A038	00000


	Steel







					1"-14

					1	50,000	Rockwell B61	1	98790A420	00000


					2	50,000	Rockwell B61	1	98791A038	00000
					3	50,000	Rockwell B61	1	98838A038	00000
					6	50,000	Rockwell B61	1	98911A038	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	95412A358	000000


	6"	70,000	—	Rockwell B70	—	1	95412A359	00000
	8"	70,000	—	Rockwell B70	—	1	95412A104	00000
	1 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A970	00000
	1 ft.	70,000	—	Rockwell B70	—	1	98804A519	00000
	2 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A975	00000
	2 ft.	70,000	—	Rockwell B70	—	1	98805A038	00000
	3 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A980	000000
	3 ft.	70,000	—	Rockwell B70	—	1	98848A038	000000
	4 ft.	70,000	—	Rockwell B70	—	1	95412A105	00000
	6 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A985	000000


	6 ft.	70,000	—	Rockwell B70	—	1	98921A038	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	3405N446	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	3405N447	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	3405N448	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	3405N449	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	3405N451	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	3405N452	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	3405N453	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	3405N454	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	3405N455	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	3405N458	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	3405N461	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	3405N462	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	3405N731	00000000

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	—	95072A171	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	—	95072A172	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	—	95072A173	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	—	95072A174	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	—	95072A351	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	—	95072A175	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	—	95072A371	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	—	95072A179	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	—	95072A109	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	—	95072A110	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	—	95072A111	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	—	95072A149	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	—	95072A112	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	—	95072A113	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	—	95072A131	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	—	95072A132	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	—	95072A114	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	—	95072A115	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	—	95072A116	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	—	95072A117	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	—	95072A118	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	—	95072A119	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	—	95072A121	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	—	95072A122	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	—	95072A761	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	—	95072A123	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	90493A110	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	90493A120	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	90493A140	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	90493A150	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	90493A160	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	90493A170	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	90493A180	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	90493A190	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	90493A240	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	95072A352	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	95072A372	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	95072A442	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	95072A209	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	95072A210	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	95072A211	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	95072A249	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	95072A212	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	95072A213	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	95072A231	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	95072A232	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	95072A214	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	95072A224	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	95072A216	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	95072A217	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	95072A218	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	95072A219	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	95072A225	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	95072A226	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	95082A644	000000


	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 156	95082A645	00000
	2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 156	95082A646	00000
	3 9/64"-12	5 3/8"	1 37/64"	4 3/8"	Brinell 156	95082A647	000000


	Black-Oxide 1117 Carbon Steel



			9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 135	1329K101	00000


			15/16"-16	2 39/64"	17/32"	2 3/32"	Brinell 135	1329K102	00000
			1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 135	1329K104	00000
			1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 135	1329K105	00000


			1215 Carbon Steel



					9/16"-18	1 39/64"	13/32"	1 1/8"	Not Rated	95082A641	00000


					15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	95082A642	00000
					1"-18	2 5/8"	17/32"	2 3/32"	Not Rated	95082A643	00000


					303 Stainless Steel



							9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 140	1329K11	00000


							15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	00000
							1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K13	00000
							1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	1329K14	00000
							1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	1329K15	000000
							2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 140	1329K16	000000

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	95625A315	000000


	3	125,000	ASTM Grade B7	Rockwell C34	ASTM A193	95625A047	00000
	6	125,000	ASTM Grade B7	Rockwell C34	ASTM A193	95625A202	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	90264A265	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	90977A230	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	90983A241	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 130	Not Rated	2,800	—	95072A331	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	—	95072A130	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	—	95072A420	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	—	95072A147	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	—	95072A145	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	—	95072A601	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	—	95072A540	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	—	95072A511	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	—	95072A561	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	95075A230	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 130	Not Rated	2,800	95072A332	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	95072A602	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	95072A512	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	95072A562	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	95082A644	000000


	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 156	95082A645	00000


	1215 Carbon Steel



			15/16"-16	2 5/8"	17/32"	2 3/32"	Not Rated	95082A642	00000


			1"-18	2 5/8"	17/32"	2 3/32"	Not Rated	95082A643	00000


			303 Stainless Steel



					15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	00000


					1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K13	00000
					1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	1329K14	00000
					1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	1329K15	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	7549K92	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	7549K94	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	7549K95	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	6641K9	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	3405N467	0000000	2528N42	0000000