Left Hand Lead Screw Nuts

Filter by

Nut Type

System of Measurement

Thread Size

Thread Direction

Right Hand and Left Hand

Component

Material

Thread Type

Length

Number of Thread Starts

Diameter

Travel Distance per Turn

Speed Ratio

Tensile Strength

60,000 psi or greater

Thread Fit

Hardness

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Width

Dynamic Thrust Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

3,000 lb. to 9,999 lb.

10,000 lb. or greater

Not Rated

External Thread Length

Specifications Met

External Thread Type

216 Products

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.

Round Nuts—Left-Hand Thread

Iron—Iron nuts have good machinability and high strength.

932 Bearing 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.

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



		3/8"-8	3/4"	1.344"	Stub Acme	1:1	1	0.125"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A621	000000


		3/8"-10	3/4"	1.344"	Stub Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A623	00000
		3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A311	00000
		3/8"-16	3/4"	1.344"	Acme	1:1	1	0.063"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A629	00000
		1/2"-10	1"	1.469"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A315	00000
		5/8"-5	1 1/4"	1.859"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A613	00000
		5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A319	00000
		5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A625	00000
		3/4"-5	1 1/2"	2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A323	00000
		3/4"-6	1 1/2"	2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A327	00000
		3/4"-10	1 1/2"	2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A626	00000


		1"-4	2"	2.984"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A606	000000
		1"-5	2"	2.984"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A331	000000
		1"-6	2"	2.984"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A335	00000
		1"-10	2"	2.984"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A339	00000
		1 1/4"-4	2 1/2"	3.734"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A607	000000
		1 1/4"-5	2 1/2"	3.734"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A343	000000
		1 1/2"-4	3"	4.469"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 217	Not Rated	Not Rated	—	95365A347	000000


		932 Bearing Bronze



				3/8"-8	3/4"	1.344"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 65	Not Rated	700	—	1343K231	00000


				3/8"-10	3/4"	1.344"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	700	—	1343K233	00000
				3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Brinell 65	Not Rated	700	—	1343K238	00000
				1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,300	—	1343K234	00000
				5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Brinell 65	Not Rated	2,000	—	1343K232	00000
				5/8"-10	1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,000	—	1343K235	00000
				3/4"-5	1 1/2"	2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,900	—	1343K224	000000
				3/4"-6	1 1/2"	2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	2,900	—	1343K228	000000
				3/4"-10	1 1/2"	2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,900	—	1343K236	000000
				1"-4	2"	2.984"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	5,000	—	1343K216	000000
				1"-5	2"	2.984"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	5,000	—	1343K225	000000


				1"-6	2"	2.984"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	5,000	—	1343K229	000000
				1"-10	2"	2.984"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	5,000	—	1343K237	000000
				1 1/4"-4	2 1/2"	3.734"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	7,850	—	1343K217	000000
				1 1/4"-5	2 1/2"	3.734"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	7,850	—	1343K226	000000
				1 1/2"-4	3"	4.469"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	12,000	—	1343K218	000000


				PET



						3/8"-8	3/4"	1.344"	Acme	1:1	1	0.125"	Acme Class 2C	Not Rated	Not Rated	350	15 to 175	1349K135	00000


						3/8"-10	3/4"	1.344"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	350	15 to 175	1349K139	00000
						3/8"-12	3/4"	1.344"	Acme	1:1	1	0.083"	Acme Class 2C	Not Rated	Not Rated	350	15 to 175	1349K151	00000
						1/2"-10	1"	1.465"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	650	15 to 175	1349K142	00000
						5/8"-8	1 1/4"	1.859"	Acme	1:1	1	0.125"	Acme Class 2C	Not Rated	Not Rated	1,000	15 to 175	1349K137	00000
5/8"-10						1 1/4"	1.859"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,000	15 to 175	1349K144	00000
3/4"-5	1 1/2"					2.234"	Acme	1:1	1	0.2"	Acme Class 2C	Not Rated	Not Rated	1,450	15 to 175	1349K122	000000
3/4"-6	1 1/2"					2.234"	Acme	1:1	1	0.167"	Acme Class 2C	Not Rated	Not Rated	1,450	15 to 175	1349K131	000000
3/4"-10	1 1/2"					2.234"	Acme	1:1	1	0.1"	Acme Class 2C	Not Rated	Not Rated	1,450	15 to 175	1349K146	000000

Externally Threaded Nuts—Left-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, 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"-8	1 1/2"	1.5"	Acme	1:1	1	0.125"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 70	Not Rated	5,000	95072A362	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



				1/4"-16	5/8"	0.688"	Acme	1:1	1	0.063"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A882	00000


				3/8"-12	5/8"	0.688"	Acme	1:1	1	0.083"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A208	00000
				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

Platform Nuts—Left-Hand Thread

Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Platform Nuts—Left-Hand Thread.

Platform nuts have wide, machinable surfaces for custom mounting.

932 Bearing 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.

	Lg.	Wd.	Ht.	Ctr. Ht.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
932 Bearing Bronze



	1/2"-10	1 3/4"	2"	1 1/8"	5/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	1,200	1710K49	0000000


	3/4"-5	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K44	000000
	3/4"-6	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K47	000000
	3/4"-10	2 1/4"	2 5/8"	1 5/8"	15/16"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	2,800	1710K51	000000
	1"-4	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K41	000000
	1"-5	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.2"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K45	000000
	1"-6	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.167"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K48	000000
	1"-10	3"	3"	1 15/16"	1 1/8"	Acme	1:1	1	0.1"	Acme Class 2C	Brinell 65	Not Rated	5,000	1710K52	000000
	1 1/2"-4	4 1/2"	3 5/8"	2 9/16"	1 1/2"	Acme	1:1	1	0.25"	Acme Class 2C	Brinell 65	Not Rated	11,000	1710K43	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


	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

Acme Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.

Coupling Nuts—Left-Hand Thread

Coupling nuts connect two lead screws.

Carbon Steel—Carbon steel components are easier to machine than alloy steel components.

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
Carbon Steel



	1/2"-10	Acme	1 1/4"	5/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	93026A648	000000


	5/8"-8	Acme	2 1/8"	7/8"	1	1:1	0.125"	Acme Class 2G	Rockwell B75	Not Rated	93026A651	00000
	3/4"-5	Acme	2 1/4"	1"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	93026A653	00000
	3/4"-6	Acme	2 1/4"	1"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	93026A652	00000
	7/8"-6	Acme	2 1/2"	1 1/4"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	93026A304	00000
	1"-5	Acme	2 3/4"	1 3/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	93026A655	00000
	1"-6	Acme	2 3/4"	1 3/8"	1	1:1	0.167"	Acme Class 2G	Rockwell B75	Not Rated	93026A654	00000
	1"-10	Acme	2 3/4"	1 3/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B75	Not Rated	93026A308	00000
	1 1/8"-5	Acme	3"	1 1/2"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	93026A656	00000
	1 1/4"-4	Acme	3"	1 5/8"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	93026A658	00000
	1 1/4"-5	Acme	3"	1 5/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B75	Not Rated	93026A657	00000


	1 3/8"-4	Acme	3 1/4"	1 7/8"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	93026A313	00000
	1 1/2"-4	Acme	3 1/2"	2"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	93026A659	000000
	2"-4	Acme	4"	3"	1	1:1	0.25"	Acme Class 2G	Rockwell B75	Not Rated	93026A318	000000

Flange Nuts—Left-Hand Thread

Flange nuts move objects along the length of a lead screw. Flange nuts have a wide machinable flange for custom mounting.

932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. 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 or handle moves with one revolution of the lead screw.

					Flange
	Thread Size	Thread Type	Ht.	Dia.	Dia.	Thk.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength		Each
932 Bearing Bronze



		1/2"-10	Acme	1"	3/4"	1 1/4"	1/8"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	95120A511	0000000


		5/8"-8	Acme	1 1/4"	7/8"	1 1/2"	1/4"	1	1:1	0.125"	Acme Class 2G	Not Rated	Not Rated	95120A519	000000
		3/4"-5	Acme	1 1/2"	1"	2"	3/8"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	95120A523	000000
		3/4"-6	Acme	1 1/2"	1"	2"	3/8"	1	1:1	0.167"	Acme Class 2G	Not Rated	Not Rated	95120A527	000000
		7/8"-6	Acme	1 3/4"	1 1/4"	2 1/4"	1/2"	1	1:1	0.167"	Acme Class 2G	Not Rated	Not Rated	95120A543	000000
		1"-5	Acme	2"	1 1/2"	2 1/2"	1/2"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	95120A551	000000
		1"-6	Acme	2"	1 1/2"	2 1/2"	1/2"	1	1:1	0.167"	Acme Class 2G	Not Rated	Not Rated	95120A555	000000
		1 1/8"-5	Acme	2 1/4"	1 3/4"	2 3/4"	5/8"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	95120A567	000000
		1 1/4"-4	Acme	2 1/2"	2"	3"	3/4"	1	1:1	0.25"	Acme Class 2G	Not Rated	Not Rated	95120A571	000000
		1 1/4"-5	Acme	2 1/2"	2"	3"	3/4"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	95120A575	000000
		1 1/2"-4	Acme	3"	2 1/2"	3 1/2"	3/4"	1	1:1	0.25"	Acme Class 2G	Not Rated	Not Rated	95120A583	000000


		2"-4	Acme	4"	3"	4"	1"	1	1:1	0.25"	Acme Class 2G	Not Rated	Not Rated	95120A591	000000

Round Nuts—Left-Hand Thread

Round nuts move objects along the length of a lead screw.

Cast Iron—Cast iron components have good machinability and high strength.

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

932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. 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 or handle moves with one revolution of the lead screw.

	Thread Type	Ht.	Dia.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
Cast Iron



	1/2"-10	Acme	1"	1 15/32"	1	1:1	0.1"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A403	000000


	5/8"-8	Acme	1 1/4"	1 55/64"	1	1:1	0.125"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A408	00000
	3/4"-5	Acme	1 1/2"	2 15/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A412	00000
	3/4"-6	Acme	1 1/2"	2 15/64"	1	1:1	0.167"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A413	00000
	1"-5	Acme	2"	2 63/64"	1	1:1	0.2"	Acme Class 2G	Rockwell B96	Not Rated	—	95080A422	000000


	360 Brass



			1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A403	0000


			5/8"-8	Acme	5/8"	1"	1	1:1	0.125"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A405	00000
			3/4"-5	Acme	3/4"	1 1/4"	1	1:1	0.2"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A407	00000
			3/4"-6	Acme	3/4"	1 1/4"	1	1:1	0.167"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A409	00000
			7/8"-6	Acme	7/8"	1 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A417	00000
			1"-5	Acme	1"	1 5/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A419	00000
			1"-6	Acme	1"	1 5/8"	1	1:1	0.167"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A421	00000
			1"-10	Acme	1"	1 5/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A423	00000
			1 1/4"-5	Acme	1 1/4"	2"	1	1:1	0.2"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95100A427	00000


			932 Bearing Bronze



					1/2"-10	Acme	29/32"	29/32"	1	1:1	0.1"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A404	00000


					5/8"-8	Acme	1 1/32"	1 9/32"	1	1:1	0.125"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A408	00000
					3/4"-5	Acme	1 9/32"	1 13/32"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A412	00000
					3/4"-6	Acme	1 9/32"	1 13/32"	1	1:1	0.167"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A417	00000
					1"-5	Acme	1 17/32"	1 21/32"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A427	00000
					1 1/4"-5	Acme	2 1/64"	2 5/32"	1	1:1	0.2"	Acme Class 2G	Not Rated	Not Rated	ASTM B505	95090A429	00000

Hex Nuts—Left-Hand Thread

Hex nuts fasten and position lead screw components.

Carbon Steel—Carbon steel components are easier to machine than alloy steel components.

Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and are easier to machine than alloy steel components.

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

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

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

	Thread Size	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Fastener Strength Grade/Class	Hardness	Tensile Strength, psi	Specs. Met		Each
Carbon Steel



		1/4"-16	Acme	15/64"	1/2"	1	1:1	0.063"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A009	00000


		3/8"-8	Stub Acme	23/64"	11/16"	1	1:1	0.125"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A014	0000
		3/8"-10	Stub Acme	23/64"	11/16"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A019	0000
		3/8"-12	Acme	23/64"	11/16"	1	1:1	0.083"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A106	0000
		1/2"-8	Acme	31/64"	7/8"	1	1:1	0.125"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A023	0000
		1/2"-10	Acme	31/64"	7/8"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A107	0000
		5/8"-6	Acme	39/64"	1 1/16"	1	1:1	0.167"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A027	0000
		5/8"-8	Acme	39/64"	1 1/16"	1	1:1	0.125"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A108	0000
		3/4"-5	Acme	47/64"	1 1/4"	1	1:1	0.2"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A117	0000
		3/4"-6	Acme	47/64"	1 1/4"	1	1:1	0.167"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A109	0000
		3/4"-8	Acme	47/64"	1 1/4"	1	1:1	0.125"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A046	0000


		7/8"-6	Acme	55/64"	1 7/16"	1	1:1	0.167"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A120	00000
		1"-4	Acme	63/64"	1 5/8"	1	1:1	0.25"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A054	00000
		1"-5	Acme	63/64"	1 5/8"	1	1:1	0.2"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A110	0000
		1"-6	Acme	63/64"	1 5/8"	1	1:1	0.167"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A111	0000
		1"-8	Acme	63/64"	1 5/8"	1	1:1	0.125"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A066	00000
		1"-10	Acme	63/64"	1 5/8"	1	1:1	0.1"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A121	0000
		1 1/8"-5	Acme	1 7/64"	1 13/16"	1	1:1	0.2"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A119	00000
		1 1/4"-4	Acme	1 7/32"	2"	1	1:1	0.25"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A118	00000
		1 1/4"-5	Acme	1 7/32"	2"	1	1:1	0.2"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A112	00000
		1 3/8"-4	Acme	1 11/32"	2 3/16"	1	1:1	0.25"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A122	00000


		1 1/2"-4	Acme	1 15/32"	2 3/8"	1	1:1	0.25"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A113	00000
		1 1/2"-5	Acme	1 1/2"	2 3/8"	1	1:1	0.2"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A123	00000
		2"-4	Acme	2"	3"	1	1:1	0.25"	Acme Class 2G	SAE Grade 2	Rockwell B85	64,000	—	91808A114	00000


		Zinc-Plated Carbon Steel



				1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B75	Not Rated	—	98948A130	00000


				5/8"-8	Acme	5/8"	1"	1	1:1	0.125"	Acme Class 2G	—	Rockwell B75	Not Rated	—	98948A140	00000
				3/4"-6	Acme	3/4"	1 1/4"	1	1:1	0.167"	Acme Class 2G	—	Rockwell B75	Not Rated	—	98948A150	00000
				1"-5	Acme	1"	1 5/8"	1	1:1	0.2"	Acme Class 2G	—	Rockwell B75	Not Rated	—	98948A170	00000
				1 1/4"-5	Acme	1 1/4"	2"	1	1:1	0.2"	Acme Class 2G	—	Rockwell B75	Not Rated	—	98948A220	00000


				360 Brass



						1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A314	0000


						5/8"-8	Acme	5/8"	1"	1	1:1	0.125"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A319	00000
						3/4"-5	Acme	3/4"	1 1/4"	1	1:1	0.2"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A323	00000
						3/4"-6	Acme	3/4"	1 1/4"	1	1:1	0.167"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A327	00000
						7/8"-6	Acme	7/8"	1 1/2"	1	1:1	0.167"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A343	00000
						1"-5	Acme	1"	1 5/8"	1	1:1	0.2"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A347	00000
						1"-6	Acme	1"	1 5/8"	1	1:1	0.167"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A351	00000
						1"-10	Acme	1"	1 5/8"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A355	00000
						1 1/8"-5	Acme	1 1/8"	1 3/4"	1	1:1	0.2"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A359	00000
						1 1/4"-5	Acme	1 1/4"	2"	1	1:1	0.2"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A363	00000
1 1/2"-4						Acme	1 1/2"	2 1/4"	1	1:1	0.25"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A367	00000


2"-4	Acme					2"	3"	1	1:1	0.25"	Acme Class 2G	—	Rockwell B75	Not Rated	ASTM B16	95155A371	000000


18-8 Stainless Steel



						1/4"-16	Acme	15/64"	1/2"	1	1:1	0.063"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A305	00000


						3/8"-8	Stub Acme	23/64"	11/16"	1	1:1	0.125"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A355	00000
						3/8"-10	Stub Acme	23/64"	11/16"	1	1:1	0.1"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A357	00000
						3/8"-12	Acme	23/64"	11/16"	1	1:1	0.083"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A408	00000
						1/2"-8	Acme	31/64"	7/8"	1	1:1	0.125"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A366	00000
						1/2"-10	Acme	31/64"	7/8"	1	1:1	0.1"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A412	00000
						5/8"-6	Acme	39/64"	1 1/16"	1	1:1	0.167"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A371	00000
						5/8"-8	Acme	39/64"	1 1/16"	1	1:1	0.125"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A413	00000
						3/4"-5	Acme	47/64"	1 1/4"	1	1:1	0.2"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A414	00000
						3/4"-6	Acme	47/64"	1 1/4"	1	1:1	0.167"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A417	00000
						3/4"-8	Acme	47/64"	1 1/4"	1	1:1	0.125"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A383	00000


						7/8"-6	Acme	55/64"	1 1/2"	1	1:1	0.167"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A426	00000
						1"-4	Acme	63/64"	1 5/8"	1	1:1	0.25"	Acme Class 2G	—	Rockwell B97	Not Rated	—	95066A389	00000
						1"-5	Acme	63/64"	1 5/8"	1	1:1	0.2"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A415	00000
						1"-6	Acme	63/64"	1 5/8"	1	1:1	0.167"	Acme Class 2G	—	Not Rated	Not Rated	—	95066A418	00000

Square Nuts—Left-Hand Thread

Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.

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

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

	Thread Type	Ht.	Wd.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Specs. Met		Each
360 Brass



	3/8"-12	Acme	3/8"	3/4"	1	1:1	0.083"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A511	00000


	1/2"-10	Acme	1/2"	7/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A514	00000
	5/8"-8	Acme	5/8"	1"	1	1:1	0.125"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A519	00000
	3/4"-5	Acme	3/4"	1 1/4"	1	1:1	0.2"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A523	00000
	3/4"-6	Acme	3/4"	1 1/4"	1	1:1	0.167"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A527	00000
	7/8"-6	Acme	7/8"	1 1/2"	1	1:1	0.167"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A543	00000
	1"-5	Acme	1"	1 5/8"	1	1:1	0.2"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A547	00000
	1"-6	Acme	1"	1 5/8"	1	1:1	0.167"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A551	00000
	1"-10	Acme	1"	1 5/8"	1	1:1	0.1"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A555	00000
	1 1/4"-5	Acme	1 1/4"	2"	1	1:1	0.2"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A563	00000
	1 1/2"-4	Acme	1 1/2"	2 1/4"	1	1:1	0.25"	Acme Class 2G	Rockwell B55	Not Rated	ASTM B16	95270A567	00000

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.

Round Nuts—Left-Hand Thread

932 Bearing 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.

	Lg.	Dia.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength	Dynamic Thrust Load Cap., lb.		Each
932 Bearing Bronze



	1/4"-12	3/4"	1.344"	Acme	4:1	4	0.333"	Acme Class 2C	Brinell 65	Not Rated	320	1343K213	000000


	3/8"-8	3/4"	1.344"	Acme	2:1	2	0.25"	Acme Class 2C	Brinell 65	Not Rated	700	1343K214	00000
	3/8"-8	3/4"	1.344"	Acme	4:1	4	0.5"	Acme Class 2C	Brinell 65	Not Rated	700	1343K211	00000
	3/8"-10	3/4"	1.344"	Acme	2:1	2	0.2"	Acme Class 2C	Brinell 65	Not Rated	700	1343K221	00000
	1/2"-10	1"	1.469"	Acme	5:1	5	0.5"	Acme Class 2C	Brinell 65	Not Rated	1,300	1343K212	00000

Externally Threaded Nuts—Left-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—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



		5/8"-8	1"	1.125"	Acme	2:1	2	0.25"	15/16"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	1,900	95072A322	000000


		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	00000
		1"-4	1 1/2"	1.5"	Acme	2:1	2	0.5"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	5,000	95072A552	00000
		1"-6	1 1/2"	1.5"	Acme	2:1	2	0.333"	1 3/8"-16	1/2"	Acme Class 2C	Brinell 130	Not Rated	5,000	95072A302	00000


		673 Bronze



				3/8"-12	5/8"	0.688"	Acme	2:1	2	0.167"	9/16"-18	3/8"	Acme Class 2C	Brinell 70	Not Rated	Not Rated	95072A772	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	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



			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