Carbon Steel Precision Acme Rods

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System of Measurement

Thread Size

Length

Thread Direction

Material

Number of Thread Starts

Travel Distance per Turn

Thread Type

Speed Ratio

Thread Fit

Tensile Strength

Thread Pitch

Hardness

DFARS Compliance

RoHS Compliance

REACH Compliance

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213 Products

Selecting Compatible 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.

Carbon steel lead screws and flanges have good machinability. Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance and a dark surface color. 303 and 304 stainless steel lead screws and flanges have good corrosion resistance.

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

For technical drawings and 3-D models, click on a part number.

Lead Screws—Right-Hand Threaded

Right-Hand Threads

1018 Carbon Steel
Thread Size	Lg.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
1/4"-16	18"	1	1:1	0.063"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	000000
1/4"-16	3 ft.	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/4"-16	6 ft.	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/4"-20	18"	1	1:1	0.05"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
1/4"-20	3 ft.	1	1:1	0.05"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-8	3 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-8	6 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-10	18"	1	1:1	0.1"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-10	3 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-10	6 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-12	18"	1	1:1	0.083"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-12	3 ft.	1	1:1	0.083"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-12	6 ft.	1	1:1	0.083"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-16	18"	1	1:1	0.063"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-16	3 ft.	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-16	6 ft.	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	3 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	6 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-5	3 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
5/8"-5	6 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	000000
5/8"-8	3 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	6 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-10	3 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-10	6 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-5	3 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-5	6 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/4"-6	3 ft.	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-6	6 ft.	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	3 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	6 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-10	3 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-10	6 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/4"-16	3 ft.	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-16	6 ft.	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
7/8"-6	3 ft.	1	1:1	0.167"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
7/8"-6	6 ft.	1	1:1	0.167"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	000000
1"-4	3 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-4	6 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-5	3 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-5	6 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-6	3 ft.	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-6	6 ft.	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-8	3 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-8	6 ft.	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-10	3 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-10	6 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-4	3 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-4	6 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-5	3 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-5	6 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/2"-4	3 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/2"-4	6 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-5	18"	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 126	53,000	000000000	00000
1 1/2"-5	3 ft.	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 126	53,000	000000000	000000
1 1/2"-5	6 ft.	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 126	53,000	000000000	000000
1 1/2"-10	3 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-10	6 ft.	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-2	3 ft.	1	1:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-2	6 ft.	1	1:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-4	3 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-4	6 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-5	3 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-5	6 ft.	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2 1/2"-3	3 ft.	1	1:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2 1/2"-3	6 ft.	1	1:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2 1/2"-4	3 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2 1/2"-4	6 ft.	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
Black-Oxide 4140 Alloy Steel
1/4"-16	18"	1	1:1	0.063"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
1/4"-16	3 ft.	1	1:1	0.063"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
1/4"-16	6 ft.	1	1:1	0.063"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	000000
1/4"-20	18"	1	1:1	0.05"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
1/4"-20	3 ft.	1	1:1	0.05"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
1/4"-20	6 ft.	1	1:1	0.05"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	000000
3/4"-8	18"	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
3/4"-8	3 ft.	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
3/4"-8	6 ft.	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	000000
3/4"-16	18"	1	1:1	0.063"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
3/4"-16	3 ft.	1	1:1	0.063"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	00000
3/4"-16	6 ft.	1	1:1	0.063"	±0.0003" per in.	Class 2C	Brinell 200	60,000	000000000	000000
304 Stainless Steel
5/8"-5	18"	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	00000
5/8"-5	3 ft.	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	00000
5/8"-5	6 ft.	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
3/4"-8	18"	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	00000
3/4"-8	3 ft.	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
3/4"-8	6 ft.	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1"-8	18"	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1"-8	3 ft.	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1"-8	6 ft.	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1 1/4"-4	18"	1	1:1	0.25"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1 1/4"-4	3 ft.	1	1:1	0.25"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1 1/4"-4	6 ft.	1	1:1	0.25"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1 1/2"-5	18"	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1 1/2"-5	3 ft.	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	000000
1 1/2"-5	6 ft.	1	1:1	0.2"	±0.0003" per in.	Class 2C	Brinell 170	31,000	000000000	00000000

Lead Screws—Left-Hand Threaded

Left-Hand Threads

1018 Carbon Steel
Thread Size	Lg.	Lg., ft.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
1/4"-16	3 ft.	3	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1/4"-16	6 ft.	6	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-10	3 ft.	3	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-10	6 ft.	6	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-16	3 ft.	3	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-16	6 ft.	6	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1/2"-10	3 ft.	3	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	6 ft.	6	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	3 ft.	3	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	6 ft.	6	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
5/8"-10	3 ft.	3	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-10	6 ft.	6	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-5	3 ft.	3	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-5	6 ft.	6	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/4"-6	3 ft.	3	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-6	6 ft.	6	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/4"-8	3 ft.	3	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	6 ft.	6	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-10	3 ft.	3	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-10	6 ft.	6	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/4"-16	3 ft.	3	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-16	6 ft.	6	1	1:1	0.063"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-4	3 ft.	3	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-4	6 ft.	6	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-5	3 ft.	3	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-5	6 ft.	6	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-6	3 ft.	3	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-6	6 ft.	6	1	1:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-8	3 ft.	3	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-8	6 ft.	6	1	1:1	0.125"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-10	3 ft.	3	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-10	6 ft.	6	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-4	3 ft.	3	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-4	6 ft.	6	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/4"-5	3 ft.	3	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/4"-5	6 ft.	6	1	1:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/2"-4	3 ft.	3	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/2"-4	6 ft.	6	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-10	3 ft.	3	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-10	6 ft.	6	1	1:1	0.1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-4	3 ft.	3	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
2"-4	6 ft.	6	1	1:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	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.

Carbon steel lead screws and flanges have good machinability.

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

For technical drawings and 3-D models, click on a part number.

Lead Screws—Right-Hand Threaded

1018 Carbon Steel
Thread Size	Lg.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
1/4"-12	18"	4	4:1	0.333"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	000000
1/4"-12	3 ft.	4	4:1	0.333"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
1/4"-16	18"	4	4:1	0.25"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
1/4"-16	3 ft.	4	4:1	0.25"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-5	3 ft.	5	5:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-5	6 ft.	5	5:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-8	18"	2	2:1	0.25"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-8	18"	4	4:1	0.5"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-8	3 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-8	3 ft.	4	4:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-8	6 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-8	6 ft.	4	4:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-10	18"	2	2:1	0.2"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-10	3 ft.	2	2:1	0.2"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-12	18"	2	2:1	0.167"	±0.009" per ft.	Class 2C	Not Rated	Not Rated	000000000	00000
3/8"-12	3 ft.	2	2:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/8"-12	6 ft.	2	2:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-8	3 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-8	3 ft.	8	8:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-8	6 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-8	6 ft.	8	8:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	3 ft.	2	2:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	3 ft.	5	5:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	6 ft.	2	2:1	0.2"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1/2"-10	6 ft.	5	5:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	3 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	6 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-6	3 ft.	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-6	6 ft.	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	3 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	3 ft.	4	4:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	6 ft.	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/4"-8	6 ft.	4	4:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-4	3 ft.	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-4	6 ft.	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-6	3 ft.	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-6	6 ft.	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-10	3 ft.	10	10:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-10	6 ft.	10	10:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-4	3 ft.	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1 1/2"-4	6 ft.	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000

Lead Screws—Left-Hand Threaded

1018 Carbon Steel
Thread Size	Lg., ft.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
3/8"-12	3	2	2:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
3/8"-12	6	2	2:1	0.167"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	3	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
5/8"-8	6	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-6	3	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-6	6	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	3	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
3/4"-8	6	2	2:1	0.25"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-4	3	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-4	6	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-6	3	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	00000
1"-6	6	2	2:1	0.333"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-10	3	10	10:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1"-10	6	10	10:1	1"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-4	3	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	000000
1 1/2"-4	6	2	2:1	0.5"	±0.009" per ft.	Class 2C	Brinell 126	64,000	000000000	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, pitch, and number of thread starts.

Lead screws are 1018 carbon steel for good machinability.

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

For technical drawings and 3-D models, click on a part number.

Lead Screws—Right-Hand Threaded

1018 Carbon Steel
Thread Size	Thread Pitch, mm	Lg., mm	No. of Thread Starts	Speed Ratio	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi	Specifications Met		Each
M10	2	250	1	1:1	2	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	000000
M10	2	500	1	1:1	2	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M10	2	750	1	1:1	2	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M10	2	1,750	1	1:1	2	±0.15 mm per 300 mm	8e	Brinell 150	70,000	DIN 103	000000	00000
M12	3	500	1	1:1	3	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M12	3	1,000	1	1:1	3	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M12	3	1,750	1	1:1	3	±0.15 mm per 300 mm	8e	Brinell 150	70,000	DIN 103	000000	00000
M16	3	500	1	1:1	3	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M16	3	1,000	1	1:1	3	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M16	3	1,750	1	1:1	3	±0.15 mm per 300 mm	8e	Brinell 150	70,000	DIN 103	000000	00000
M20	4	500	1	1:1	4	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M20	4	1,000	1	1:1	4	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M20	4	1,750	1	1:1	4	±0.15 mm per 300 mm	8e	Brinell 150	70,000	DIN 103	000000	000000
M24	5	500	1	1:1	5	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M24	5	1,000	1	1:1	5	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M24	5	1,750	1	1:1	5	±0.15 mm per 300 mm	8e	Brinell 150	70,000	DIN 103	000000	000000
M28	5	1,000	1	1:1	5	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	00000
M28	5	1,750	1	1:1	5	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	000000
M40	7	1,000	1	1:1	7	±0.15 mm per 300 mm	8e	Brinell 150	85,000	DIN 103	0000000	000000
M40	7	1,750	1	1:1	7	±0.15 mm per 300 mm	8e	Brinell 150	70,000	DIN 103	0000000	000000