304 Stainless Steel Lead Screws

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System of Measurement

Thread Size

Material

17-4 PH Stainless Steel

Component

Length

Travel Distance per Turn

Number of Thread Starts

Thread Pitch

Thread Direction

Thread Type

Metric Rounded Trapezoidal

Threading

Speed Ratio

Tensile Strength

20,000 psi to 39,999 psi

40,000 psi to 99,999 psi

Hardness

DFARS Specialty Metals

Thread Fit

RoHS

Screw Jack Orientation

End Type

Travel Length

Number of Mounting Holes

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

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

Weight Capacity

Mounting Position

165 Products

Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts.

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.

Lead Screw—Right-Hand Thread

304 Stainless Steel—304 stainless steel lead screws have good 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., mm	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
304 Stainless Steel



	M8 × 2.5 mm	250	Metric Rounded Trapezoidal	4:1	4	10	±0.1 mm/300 mm	Brinell 160	72,000	2391N24	000000


	M8 × 2.5 mm	500	Metric Rounded Trapezoidal	4:1	4	10	±0.1 mm/300 mm	Brinell 160	72,000	2391N25	00000
	M10 × 3 mm	250	Metric Rounded Trapezoidal	4:1	4	12	±0.1 mm/300 mm	Brinell 160	72,000	2391N26	00000
	M10 × 3 mm	500	Metric Rounded Trapezoidal	4:1	4	12	±0.1 mm/300 mm	Brinell 160	72,000	2391N27	00000
	M12 × 2.5 mm	250	Metric Rounded Trapezoidal	2:1	2	5	±0.1 mm/300 mm	Brinell 160	72,000	2391N28	00000
	M12 × 2.5 mm	500	Metric Rounded Trapezoidal	2:1	2	5	±0.1 mm/300 mm	Brinell 160	72,000	2391N29	00000
	M12 × 2.5 mm	1,000	Metric Rounded Trapezoidal	2:1	2	5	±0.1 mm/300 mm	Brinell 160	72,000	2391N31	000000
	M16 × 5 mm	250	Metric Rounded Trapezoidal	7:1	7	35	±0.1 mm/300 mm	Brinell 160	72,000	2391N32	00000
	M16 × 5 mm	500	Metric Rounded Trapezoidal	7:1	7	35	±0.1 mm/300 mm	Brinell 160	72,000	2391N33	000000
	M16 × 5 mm	1,000	Metric Rounded Trapezoidal	7:1	7	35	±0.1 mm/300 mm	Brinell 160	72,000	2391N34	000000
	M20 × 5 mm	500	Metric Rounded Trapezoidal	4:1	4	20	±0.1 mm/300 mm	Brinell 160	72,000	2391N35	000000


	M20 × 5 mm	1,000	Metric Rounded Trapezoidal	4:1	4	20	±0.1 mm/300 mm	Brinell 160	72,000	2391N36	000000
	M20 × 7.5 mm	500	Metric Rounded Trapezoidal	8:1	8	60	±0.1 mm/300 mm	Brinell 160	72,000	2391N37	000000
	M20 × 7.5 mm	1,000	Metric Rounded Trapezoidal	8:1	8	60	±0.1 mm/300 mm	Brinell 160	72,000	2391N38	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.

Lead Screws—Right-Hand Thread


	Right-Hand Threads

304 Stainless Steel—304 stainless steel lead screws have good 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.

	Thread Size	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
304 Stainless Steel



		1/4"-16	18"	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A965	000000


		1/4"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A966	00000
		1/4"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A209	00000
		1/4"-20	18"	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A967	00000
		1/4"-20	3 ft.	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A968	00000
		1/4"-20	6 ft.	Acme	1:1	1	0.05"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A211	000000
		3/8"-8	3 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A114	00000
		3/8"-8	6 ft.	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A320	000000
		3/8"-10	3 ft.	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A120	00000
		3/8"-10	6 ft.	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A335	000000
		3/8"-12	18"	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A976	00000


		3/8"-12	3 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A124	00000
		3/8"-12	6 ft.	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A345	000000
		3/8"-16	18"	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A977	00000
		3/8"-16	3 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A126	00000
		3/8"-16	6 ft.	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A350	000000
		1/2"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A132	00000
		1/2"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A370	000000
		5/8"-5	18"	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A110	00000
		5/8"-5	3 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A120	00000
		5/8"-5	6 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A130	000000


		5/8"-8	3 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A140	00000
		5/8"-8	6 ft.	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A385	000000
		5/8"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A138	000000
		5/8"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A387	000000
		3/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A142	000000
		3/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A390	000000
		3/4"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A144	000000
		3/4"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A393	000000
		3/4"-8	18"	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A210	00000
		3/4"-8	3 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A220	000000


		3/4"-8	6 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A230	000000
		3/4"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A146	000000
		3/4"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A395	000000
		1"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A148	000000
		1"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A405	000000
		1"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A150	000000
		1"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A410	000000
		1"-6	3 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A111	000000
		1"-6	6 ft.	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A415	000000
		1"-8	18"	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A240	000000


		1"-8	3 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A250	000000
		1"-8	6 ft.	Acme	1:1	1	0.125"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A260	000000
		1"-10	3 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A243	000000
		1"-10	6 ft.	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A420	000000
		1 1/4"-4	18"	Acme	1:1	1	0.25"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A140	000000
		1 1/4"-4	3 ft.	Acme	1:1	1	0.25"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A150	000000
		1 1/4"-4	6 ft.	Acme	1:1	1	0.25"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A160	000000
		1 1/4"-5	3 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A371	000000
		1 1/4"-5	6 ft.	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A430	000000
		1 1/2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A418	000000

1 1/2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A435	000000
1 1/2"-5	18"	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A170	000000
1 1/2"-5	3 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A180	000000
1 1/2"-5	6 ft.	Acme	1:1	1	0.2"	±0.0003"/1"	Acme Class 2C	Brinell 170	31,000	90497A190	00000000
2"-4	3 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A408	000000
2"-4	6 ft.	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A445	000000

Lead Screws—Left-Hand Thread


	Left-Hand Threads

304 Stainless Steel—304 stainless steel lead screws have good 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., ft.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
304 Stainless Steel



	3/8"-8	3	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A001	000000


	3/8"-8	6	Stub Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A620	000000
	3/8"-10	3	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A002	00000
	3/8"-10	6	Stub Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A003	000000
	3/8"-12	3	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A004	00000
	3/8"-12	6	Acme	1:1	1	0.083"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A005	00000
	3/8"-16	3	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A225	00000
	3/8"-16	6	Acme	1:1	1	0.063"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A006	000000
	1/2"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A008	00000
	1/2"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A670	000000
	5/8"-8	3	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A240	00000


	5/8"-8	6	Acme	1:1	1	0.125"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A100	000000
	5/8"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A238	000000
	5/8"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A101	000000
	3/4"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A242	000000
	3/4"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A103	000000
	3/4"-6	3	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A113	000000
	3/4"-6	6	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A693	000000
	3/4"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A246	000000
	3/4"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A695	000000
	1"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A106	000000


	1"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A119	000000
	1"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A250	000000
	1"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A710	000000
	1"-6	3	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A208	000000
	1"-6	6	Acme	1:1	1	0.167"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A204	000000
	1"-10	3	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A312	000000
	1"-10	6	Acme	1:1	1	0.1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A303	000000
	1 1/4"-5	3	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A307	000000
	1 1/4"-5	6	Acme	1:1	1	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A308	000000
	1 1/2"-4	3	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A406	000000


	1 1/2"-4	6	Acme	1:1	1	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A735	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.

Lead Screws—Right-Hand Thread

304 Stainless Steel—304 stainless steel lead screws have good 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.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
304 Stainless Steel



	1/4"-12	18"	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A963	000000


	1/4"-12	3 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A964	00000
	1/4"-12	6 ft.	Stub Acme	4:1	4	0.333"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A310	000000
	3/8"-8	18"	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A969	00000
	3/8"-8	18"	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A972	00000
	3/8"-8	3 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A971	00000
	3/8"-8	3 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A973	00000
	3/8"-8	6 ft.	Stub Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A330	000000
	3/8"-8	6 ft.	Stub Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A325	000000
	3/8"-10	18"	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A974	00000
	3/8"-10	3 ft.	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A975	00000


	3/8"-10	6 ft.	Stub Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A340	000000
	1/2"-8	3 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A978	00000
	1/2"-8	3 ft.	Stub Acme	8:1	8	1"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A979	00000
	1/2"-8	6 ft.	Acme	2:1	2	0.25"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A365	000000
	1/2"-8	6 ft.	Stub Acme	8:1	8	1"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A183	000000
	1/2"-10	3 ft.	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A981	00000
	1/2"-10	3 ft.	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A982	00000
	1/2"-10	6 ft.	Acme	2:1	2	0.2"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A380	000000
	1/2"-10	6 ft.	Acme	5:1	5	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A375	000000
	3/4"-8	3 ft.	Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Not Rated	Not Rated	98980A983	000000


	3/4"-8	6 ft.	Acme	4:1	4	0.5"	±0.009"/1 ft.	Acme Class 2C	Brinell 150	72,000	98980A187	000000

Acme Screw Jacks with Mounting Plate

Top View

The mounting plate provides a flat surface for supporting loads. Broad, strong Acme lead screw threads make these screw jacks good for heavy loads, intermittent positioning applications, and where vibration is present. Connect a motor or hand-crank shaft to the screw jack shaft to lift, hold, position, and level loads. Screw jacks come assembled, threaded, and ready for hookup.

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

					Keyway			Body			Tube			Mounting Plate Mounting Holes
	Travel Lg.	Lifting Screw Thread Size	Travel Distance per Turn	Shaft Dia.	Lg.	Wd.	Dp.	Lg.	Wd.	Dp.	Lg.	Dia.	Bearing Thk.	Ctr.-to-Ctr.	Dia.	No. of	Input Starting Torque @ Input Speed		Each
Upright Screw Jack







				250 lb. Capacity—304 Stainless Steel Lifting Screw

				3"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	3 7/16"	27/32"	—	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K37	0000000


				6"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	6 7/16"	27/32"	—	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K38	000000
				9"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	9 7/16"	27/32"	—	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K39	000000
				12"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	12 7/16"	27/32"	—	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K41	000000




						500 lb. Capacity—304 Stainless Steel Lifting Screw

						3"	5/8"-8	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	3 7/16"	27/32"	—	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K42	000000


						6"	5/8"-8	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	6 7/16"	27/32"	—	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K43	000000
						9"	5/8"-8	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	9 7/16"	27/32"	—	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K44	000000
						12"	5/8"-8	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	12 7/16"	27/32"	—	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K45	000000




								1,000 lb. Capacity—304 Stainless Steel Lifting Screw

								3"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	3 3/8"	7/8"	—	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K46	000000


								6"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	6 3/8"	7/8"	—	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K47	000000
								9"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	9 3/8"	7/8"	—	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K48	000000
								12"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	12 3/8"	7/8"	—	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K49	000000


								Inverted Screw Jack







												250 lb. Capacity—304 Stainless Steel Lifting Screw

												3"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	3 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K51	000000


												6"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	6 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K52	000000
												9"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	9 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K53	000000
												12"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	12 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	12 in·lbf @ 500 rpm	5945K54	000000




														500 lb. Capacity—304 Stainless Steel Lifting Screw

														3"	5/8"-8	0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	3 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K55	000000


6"	5/8"-8													0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	6 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K56	000000
9"	5/8"-8													0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	9 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K57	000000
12"	5/8"-8													0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	12 7/16"	27/32"	1/4"	1 1/2"	9/32"	4	21 in·lbf @ 500 rpm	5945K58	000000




		1,000 lb. Capacity—304 Stainless Steel Lifting Screw

		3"	5/8"-8											0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	3 3/8"	7/8"	1/4"	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K59	000000


		6"	5/8"-8											0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	6 3/8"	7/8"	1/4"	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K61	000000
		9"	5/8"-8											0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	9 3/8"	7/8"	1/4"	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K62	000000
		12"	5/8"-8											0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	12 3/8"	7/8"	1/4"	1 1/2"	9/32"	4	30 in·lbf @ 500 rpm	5945K63	000000

Acme Screw Jacks


Upright Screw Jack	Inverted Screw Jack	Top View

Broad, strong Acme threads make these screw jacks better than ball screw jacks for heavy loads, intermittent positioning applications, and where vibration is present. Screw jacks come assembled, threaded, and ready for hookup. Connect a motor or hand-crank shaft to the screw jack shaft to lift, hold, position, and level loads.

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

					Keyway			Body			Tube			Attachment Thread
	Travel Lg.	Lifting Screw Thread Size	Travel Distance per Turn	Shaft Dia.	Lg.	Wd.	Dp.	Lg.	Wd.	Dp.	Lg.	Dia.	Bearing Thk.	Lg.	Size	Input Starting Torque @ Input Speed		Each
Upright Screw Jack







				500 lb. Capacity—304 Stainless Steel Lifting Screw

				3"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	3 7/16"	27/32"	—	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K15	0000000


				6"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	6 7/16"	27/32"	—	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K16	000000
				9"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	9 7/16"	27/32"	—	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K17	000000
				12"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	12 7/16"	27/32"	—	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K18	000000




						1,000 lb. Capacity—304 Stainless Steel Lifting Screw

						3"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	3 3/8"	27/32"	—	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K19	000000


						6"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	6 3/8"	27/32"	—	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K21	000000
						9"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	9 3/8"	27/32"	—	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K22	000000
						12"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 3/8"	4"	2 27/32"	12 3/8"	27/32"	—	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K23	000000


						Inverted Screw Jack







										500 lb. Capacity—304 Stainless Steel Lifting Screw

										3"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	3 7/16"	27/32"	1/4"	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K28	000000


										6"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	6 7/16"	27/32"	1/4"	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K29	000000
										9"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	9 7/16"	27/32"	1/4"	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K31	000000
										12"	5/8"-4	0.05"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	12 7/16"	27/32"	1/4"	1 1/2"	1/2"-20	21 in·lbf @ 500 rpm	5945K32	000000




												1,000 lb. Capacity—304 Stainless Steel Lifting Screw

												3"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	3 3/8"	7/8"	1/4"	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K33	000000


												6"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	6 3/8"	7/8"	1/4"	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K34	000000
												9"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	9 3/8"	7/8"	1/4"	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K35	000000
												12"	5/8"-8	0.025"	3/8"	3/4"	1/8"	1/16"	2 5/16"	4"	2 27/32"	12 3/8"	7/8"	1/4"	1"	3/8"-24	30 in·lbf @ 500 rpm	5945K36	000000