Thread Size Thread Size |
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Thread Type Thread Type |
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Component Component |
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![]() | ![]() |
Lead Screw | Nut |
Length Length |
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Travel Distance per Turn Travel Distance per Turn |
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Thread Direction Thread Direction |
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![]() | ![]() |
Right Hand | Left Hand |
Nut Type Nut Type |
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![]() | Flange |
![]() | Externally Threaded |
![]() | Round |
Tensile Strength Tensile Strength |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Diameter Diameter |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
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Selecting Compatible Lead Screws and Nuts
More
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. Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance. 303 and 304 stainless steel lead screws and flanges have good corrosion resistance.
Cast iron nuts have good machinability and high strength. 360 brass nuts have excellent machinability and good corrosion resistance. 932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance. PET plastic nuts are lightweight and corrosion resistant.
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.

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 | |
1018 Carbon Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
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 |
Black-Oxide 4140 Alloy Steel | ||||||||||
1/4"-12 | 3 ft. | 4 | 4:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
1/4"-12 | 6 ft. | 4 | 4:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
3/8"-8 | 3 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-8 | 3 ft. | 4 | 4:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-8 | 6 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-8 | 6 ft. | 4 | 4:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-10 | 3 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-10 | 6 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-12 | 3 ft. | 2 | 2:1 | 0.167" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-12 | 6 ft. | 2 | 2:1 | 0.167" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
1/2"-8 | 3 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
1/2"-8 | 6 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
1/2"-10 | 3 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
1/2"-10 | 3 ft. | 5 | 5:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
1/2"-10 | 6 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
1/2"-10 | 6 ft. | 5 | 5:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/4"-6 | 3 ft. | 2 | 2:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/4"-6 | 6 ft. | 2 | 2:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
1"-10 | 3 ft. | 10 | 10:1 | 1" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
1"-10 | 6 ft. | 10 | 10:1 | 1" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
304 Stainless Steel | ||||||||||
1/4"-12 | 18" | 4 | 4:1 | 0.333" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
1/4"-12 | 3 ft. | 4 | 4:1 | 0.333" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
1/4"-12 | 6 ft. | 4 | 4:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 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 | Not Rated | Not Rated | 000000000 | 00000 |
3/8"-8 | 3 ft. | 4 | 4:1 | 0.5" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
3/8"-8 | 6 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |
3/8"-8 | 6 ft. | 4 | 4:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |
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"-10 | 6 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 00000 |
1/2"-8 | 3 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
1/2"-8 | 3 ft. | 8 | 8:1 | 1" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
1/2"-8 | 6 ft. | 2 | 2:1 | 0.25" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |
1/2"-8 | 6 ft. | 8 | 8:1 | 1" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |
1/2"-10 | 3 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
1/2"-10 | 3 ft. | 5 | 5:1 | 0.5" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 00000 |
1/2"-10 | 6 ft. | 2 | 2:1 | 0.2" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |
1/2"-10 | 6 ft. | 5 | 5:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |
3/4"-8 | 3 ft. | 4 | 4:1 | 0.5" | ±0.009" per ft. | Class 2C | Not Rated | Not Rated | 000000000 | 000000 |
3/4"-8 | 6 ft. | 4 | 4:1 | 0.5" | ±0.009" per ft. | Class 2C | Brinell 150 | 72,000 | 000000000 | 000000 |

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 | |
1018 Carbon Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
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 |
Black-Oxide 4140 Alloy Steel | ||||||||||
3/8"-12 | 3 | 2 | 2:1 | 0.167" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/8"-12 | 6 | 2 | 2:1 | 0.167" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
3/4"-6 | 3 | 2 | 2:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 00000 |
3/4"-6 | 6 | 2 | 2:1 | 0.333" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
1"-10 | 3 | 10 | 10:1 | 1" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |
1"-10 | 6 | 10 | 10:1 | 1" | ±0.009" per ft. | Class 2C | Brinell 271 | 125,000 | 000000000 | 000000 |

Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
Cast Iron | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 0000000 |
3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
1/2"-10 | 1" | 1.469" | 2 | 2:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
932 Bearing Bronze | |||||||||||
1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Brinell 65 | 320 | __ | 00000000 | 00000 |
3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 1,300 | __ | 0000000 | 00000 |
1/2"-10 | 1" | 1.469" | 2 | 2:1 | 0.2" | Class 2C | Brinell 65 | 1,300 | __ | 0000000 | 00000 |
1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Brinell 65 | 1,300 | __ | 00000000 | 00000 |
PET Plastic | |||||||||||
1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Not Rated | 160 | 15° to 175° | 00000000 | 00000 |
3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Not Rated | 650 | 15° to 175° | 0000000 | 00000 |
1/2"-10 | 1" | 1.469" | 2 | 2:1 | 0.2" | Class 2C | Not Rated | 650 | 15° to 175° | 0000000 | 00000 |
1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Not Rated | 650 | 15° to 175° | 00000000 | 00000 |

Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Each | |
932 Bearing Bronze | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Brinell 65 | 320 | 00000000 | 000000 |
3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 700 | 00000000 | 00000 |
3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Brinell 65 | 700 | 00000000 | 00000 |
3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Brinell 65 | 700 | 00000000 | 00000 |
1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Brinell 65 | 1,300 | 00000000 | 00000 |

Combine externally threaded nuts with a flange to create a custom flange nut.
External Thread | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
360 Brass | |||||||||||||
1/4"-16 | 5/8" | 0.688" | 4 | 4:1 | 0.25" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | 300 | __ | 000000000 | 000000 |
5/8"-8 | 1" | 1.125" | 2 | 2:1 | 0.25" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | 1,900 | __ | 000000000 | 00000 |
3/4"-8 | 1 1/4" | 1.125" | 2 | 2:1 | 0.25" | 1"-18 | 1/2" | Class 2C | Brinell 70 | 2,800 | __ | 000000000 | 00000 |
1"-4 | 1 1/2" | 1.5" | 2 | 2:1 | 0.5" | 1 3/8"-16 | 1/2" | Class 2C | Brinell 70 | 5,000 | __ | 000000000 | 00000 |
1"-6 | 1 1/2" | 1.5" | 2 | 2:1 | 0.333" | 1 3/8"-16 | 1/2" | Class 2C | Brinell 70 | 5,000 | __ | 000000000 | 00000 |
673 Bronze | |||||||||||||
1/4"-12 | 5/8" | 0.688" | 4 | 4:1 | 0.333" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
3/8"-8 | 5/8" | 0.688" | 2 | 2:1 | 0.25" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
3/8"-8 | 5/8" | 0.688" | 4 | 4:1 | 0.5" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
3/8"-10 | 5/8" | 0.688" | 2 | 2:1 | 0.2" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
3/8"-12 | 5/8" | 0.688" | 2 | 2:1 | 0.167" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
1/2"-8 | 3/4" | 1.125" | 2 | 2:1 | 0.25" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
1/2"-8 | 3/4" | 1.125" | 8 | 8:1 | 1" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
1/2"-10 | 3/4" | 1.125" | 2 | 2:1 | 0.2" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
1/2"-10 | 3/4" | 1.125" | 5 | 5:1 | 0.5" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
3/4"-6 | 1 1/4" | 1.125" | 2 | 2:1 | 0.333" | 1"-18 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
3/4"-8 | 1 1/4" | 1.125" | 4 | 4:1 | 0.5" | 1"-18 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
1"-10 | 1 1/2" | 1.5" | 10 | 10:1 | 1" | 1 3/8"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
1 1/2"-4 | 2 19/64" | 2.125" | 2 | 2:1 | 0.5" | 1 31/32"-18 | 13/16" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 000000 |
PET Plastic | |||||||||||||
1/4"-12 | 5/8" | 0.688" | 4 | 4:1 | 0.333" | 9/16"-18 | 3/8" | Class 2C | Not Rated | 160 | 15° to 175° | 000000000 | 00000 |
3/8"-5 | 5/8" | 0.688" | 5 | 5:1 | 1" | 9/16"-18 | 3/8" | Class 2C | Not Rated | 250 | 15° to 175° | 000000000 | 00000 |
3/8"-8 | 5/8" | 0.688" | 2 | 2:1 | 0.25" | 9/16"-18 | 3/8" | Class 2C | Not Rated | 350 | 15° to 175° | 000000000 | 00000 |
3/8"-8 | 5/8" | 0.688" | 4 | 4:1 | 0.5" | 9/16"-18 | 3/8" | Class 2C | Not Rated | 350 | 15° to 175° | 000000000 | 00000 |
3/8"-10 | 5/8" | 0.688" | 2 | 2:1 | 0.2" | 9/16"-18 | 3/8" | Class 2C | Not Rated | 350 | 15° to 175° | 000000000 | 00000 |
1/2"-8 | 3/4" | 1.125" | 2 | 2:1 | 0.25" | 15/16"-16 | 1/2" | Class 2C | Not Rated | 650 | 15° to 175° | 000000000 | 00000 |
1/2"-10 | 3/4" | 1.125" | 2 | 2:1 | 0.2" | 15/16"-16 | 1/2" | Class 2C | Not Rated | 650 | 15° to 175° | 000000000 | 00000 |
1/2"-10 | 3/4" | 1.125" | 5 | 5:1 | 0.5" | 15/16"-16 | 1/2" | Class 2C | Not Rated | 650 | 15° to 175° | 000000000 | 00000 |
3/4"-8 | 1 1/4" | 1.125" | 4 | 4:1 | 0.5" | 1"-18 | 1/2" | Class 2C | Not Rated | 1,450 | 15° to 175° | 000000000 | 00000 |
1"-4 | 1 1/2" | 1.5" | 2 | 2:1 | 0.5" | 1 3/8"-16 | 1/2" | Class 2C | Not Rated | 2,500 | 15° to 175° | 000000000 | 00000 |

Combine externally threaded nuts with a flange to create a custom flange nut.
External Thread | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Each | |
360 Brass | ||||||||||||
5/8"-8 | 1" | 1.125" | 2 | 2:1 | 0.25" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | 1,900 | 000000000 | 000000 |
3/4"-8 | 1 1/4" | 1.125" | 2 | 2:1 | 0.25" | 1"-18 | 1/2" | Class 2C | Brinell 70 | 2,800 | 000000000 | 00000 |
1"-4 | 1 1/2" | 1.5" | 2 | 2:1 | 0.5" | 1 3/8"-16 | 1/2" | Class 2C | Brinell 70 | 5,000 | 000000000 | 00000 |
1"-6 | 1 1/2" | 1.5" | 2 | 2:1 | 0.333" | 1 3/8"-16 | 1/2" | Class 2C | Brinell 70 | 5,000 | 000000000 | 00000 |
673 Bronze | ||||||||||||
3/8"-12 | 5/8" | 0.688" | 2 | 2:1 | 0.167" | 9/16"-18 | 3/8" | Class 2C | Brinell 70 | Not Rated | 000000000 | 00000 |
3/4"-6 | 1 1/4" | 1.125" | 2 | 2:1 | 0.333" | 1"-18 | 1/2" | Class 2C | Brinell 70 | Not Rated | 000000000 | 00000 |
1"-10 | 1 1/2" | 1.5" | 10 | 10:1 | 1" | 1 3/8"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | 000000000 | 00000 |
1 1/2"-4 | 2 19/64" | 2.125" | 2 | 2:1 | 0.5" | 1 31/32"-18 | 13/16" | Class 2C | Brinell 70 | Not Rated | 000000000 | 000000 |


Thread onto an externally threaded acme nut to create a custom flange nut.
Flange Thread Size | Flange Dia. | Flange Thick. | Bolt Circle Dia. | Flange Hardness | Each | |
1117 Carbon Steel | ||||||
---|---|---|---|---|---|---|
1 3/8"-16 | 2 49/64" | 33/64" | 2 17/64" | Brinell 156 | 000000000 | 000000 |
1 31/32"-18 | 4 13/64" | 53/64" | 3 7/16" | Brinell 156 | 000000000 | 00000 |
1215 Carbon Steel | ||||||
9/16"-18 | 1 39/64" | 13/32" | 1 1/8" | Not Rated | 000000000 | 00000 |
15/16"-16 | 2 5/8" | 17/32" | 2 3/32" | Not Rated | 000000000 | 00000 |
1"-18 | 2 5/8" | 17/32" | 2 3/32" | Not Rated | 000000000 | 00000 |
303 Stainless Steel | ||||||
9/16"-18 | 1 39/64" | 13/32" | 1 1/8" | Brinell 140 | 0000000 | 00000 |
15/16"-16 | 2 5/8" | 17/32" | 2 3/32" | Brinell 140 | 0000000 | 00000 |
1"-18 | 2 5/8" | 17/32" | 2 3/32" | Brinell 140 | 0000000 | 00000 |
1 3/8"-16 | 2 49/64" | 33/64" | 2 17/64" | Brinell 140 | 0000000 | 00000 |
1 31/32"-18 | 4 13/64" | 53/64" | 3 7/16" | Brinell 140 | 0000000 | 000000 |
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 type, thread size, thread pitch, and number of thread starts.
Nuts are acetal plastic; they have good wear and corrosion resistance.
Alloy steel lead screws are hard and strong. 303 and 304 stainless steel lead screws 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.

Thread Size | Thread Pitch, mm | Lg., mm | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |
4140 Alloy Steel | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
M5 | 1.25 | 100 | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | ±0.089 mm per 300 mm | Brinell 200 | 90,000 | 000000000 | 000000 |
M5 | 1.25 | 175 | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 000000000 | 00000 |
M8 | 2 | 200 | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 000000000 | 00000 |
M8 | 2 | 300 | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 000000000 | 00000 |
303 Stainless Steel | |||||||||||
M2 | 0.5 | 50 | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
M2 | 0.5 | 100 | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
M4 | 1.25 | 75 | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
M4 | 1.25 | 150 | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
304 Stainless Steel | |||||||||||
M8 | 2.5 | 250 | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M8 | 2.5 | 500 | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M10 | 3 | 250 | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M10 | 3 | 500 | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M12 | 2.5 | 250 | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M12 | 2.5 | 500 | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M12 | 2.5 | 1,000 | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
M16 | 5 | 250 | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
M16 | 5 | 500 | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
M16 | 5 | 1,000 | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
M20 | 5 | 500 | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
M20 | 5 | 1,000 | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
M20 | 7.5 | 500 | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
M20 | 7.5 | 1,000 | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |

Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | M8 | 2.5 | 15/32" | 0.709" | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 000000 |
A | M10 | 3 | 25/32" | 0.866" | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
A | M12 | 2.5 | 15/16" | 1.024" | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
A | M16 | 5 | 1 17/64" | 1.417" | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
A | M20 | 5 | 1 37/64" | 1.772" | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
A | M20 | 7.5 | 1 37/64" | 1.772" | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |

External Thread | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Thread Pitch, mm | Lg. | Dia. | Hex Wd. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||||
B | M2 | 0.5 | 11/16" | 0.297" | 7/16" | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | 3/8"-24 | 3/16" | 8,000 | 10 | -40° to 185° | 000000000 | 000000 |
B | M4 | 1.25 | 11/16" | 0.297" | 7/16" | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
B | M5 | 1.25 | 11/16" | 0.297" | 7/16" | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
B | M8 | 2 | 1" | 0.548" | 11/16" | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | 5/8"-18 | 1/4" | 8,000 | 75 | -40° to 185° | 000000000 | 00000 |





Flange | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Thread Pitch, mm | Lg. | Dia. | Dia. | Wd. | Ht. | Thick. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Mounting Hole Ctr.-to-Ctr. | Bolt Circle Dia. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temp. Range, °F | Each | ||
Acetal Plastic | |||||||||||||||||||
C | M2 | 0.5 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | 39/64" | __ | 8,000 | 10 | -40° to 185° | 000000000 | 000000 |
C | M4 | 1.25 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | 39/64" | __ | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
C | M5 | 1.25 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | 39/64" | __ | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
D | M8 | 2 | 3/4" | 0.548" | 1 1/8" | __ | __ | 3/16" | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | __ | 7/8" | 8,000 | 75 | -40° to 185° | 000000000 | 00000 |
E | M8 | 2.5 | 25/32" | 0.787" | 1 27/64" | __ | __ | 5/16" | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | __ | 1 7/64" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
E | M10 | 3 | 63/64" | 0.984" | 1 21/32" | __ | __ | 25/64" | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | __ | 1 11/32" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
E | M12 | 2.5 | 1 3/8" | 1.102" | 1 57/64" | __ | __ | 15/32" | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | __ | 1 1/2" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
E | M16 | 5 | 1 3/8" | 1.102" | 1 57/64" | __ | __ | 15/32" | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | __ | 1 1/2" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
E | M20 | 5 | 1 47/64" | 1.26" | 2 11/64" | __ | __ | 15/32" | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | __ | 1 49/64" | 10,000 | Not Rated | -40° to 185° | 0000000 | 000000 |
E | M20 | 7.5 | 1 47/64" | 1.26" | 2 11/64" | __ | __ | 15/32" | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | __ | 1 49/64" | 10,000 | Not Rated | -40° to 185° | 0000000 | 000000 |
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 Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. All components are corrosion resistant for use in harsh environments. To ensure compatibility, select components that have the same thread type, thread size, and number of thread starts.
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.

Thread Size | Lg. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |
303 Stainless Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
9/64"-20.8 | 18" | 2 | Rounded Acme | 2:1 | 0.096" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
5/32"-21.3 | 18" | 2 | Acme | 2:1 | 0.094" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 00000 |
3/16"-42.7 | 18" | 16 | Rounded Acme | 16:1 | 0.375" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 00000 |
7/32"-20.8 | 9" | 4 | Rounded Acme | 4:1 | 0.192" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 00000 |
7/32"-20.8 | 18" | 4 | Rounded Acme | 4:1 | 0.192" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 00000 |
1/4"-8 | 3ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/4"-8 | 6ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
1/4"-16 | 3ft. | 4 | Rounded Acme | 4:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/4"-16 | 6ft. | 4 | Rounded Acme | 4:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
1/4"-20 | 3ft. | 2 | Rounded Acme | 2:1 | 0.1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 00000 |
1/4"-20 | 6ft. | 2 | Rounded Acme | 2:1 | 0.1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/8"-5 | 3ft. | 5 | Rounded Acme | 5:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/8"-5 | 6ft. | 5 | Rounded Acme | 5:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
3/8"-8 | 3ft. | 2 | Rounded Acme | 2:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/8"-8 | 3ft. | 4 | Rounded Acme | 4:1 | 0.5" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/8"-8 | 6ft. | 4 | Rounded Acme | 4:1 | 0.5" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
3/8"-10 | 3ft. | 2 | Rounded Acme | 2:1 | 0.2" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/8"-10 | 6ft. | 2 | Rounded Acme | 2:1 | 0.2" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
3/8"-12 | 6ft. | 3 | Rounded Acme | 3:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/2"-8 | 3ft. | 2 | Rounded Acme | 2:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/2"-8 | 3ft. | 4 | Rounded Acme | 4:1 | 0.5" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/2"-8 | 3ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/2"-8 | 6ft. | 2 | Rounded Acme | 2:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/2"-8 | 6ft. | 4 | Rounded Acme | 4:1 | 0.5" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
1/2"-8 | 6ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
1/2"-10 | 3ft. | 2 | Rounded Acme | 2:1 | 0.2" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
1/2"-10 | 6ft. | 2 | Rounded Acme | 2:1 | 0.2" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
5/8"-6 | 3ft. | 12 | Rounded Acme | 12:1 | 2" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
5/8"-6 | 6ft. | 12 | Rounded Acme | 12:1 | 2" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
5/8"-8 | 3ft. | 4 | Rounded Acme | 4:1 | 0.5" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
5/8"-8 | 6ft. | 4 | Rounded Acme | 4:1 | 0.5" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/4"-8 | 3ft. | 2 | Rounded Acme | 2:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/4"-8 | 3ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |
3/4"-8 | 6ft. | 2 | Rounded Acme | 2:1 | 0.25" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 000000 |
3/4"-8 | 6ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 000000 |





Flange nuts with wear-compensating internal O-ring or wear-compensating spring maintain a tight fit even when their threads begin to wear.
Flange | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Dia. | Wd. | Ht. | Thick. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn | Mounting Hole Ctr.-to-Ctr. | Bolt Circle Dia. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Each | ||
Acetal Plastic | |||||||||||||||||
A | 9/64"-20.8 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 2 | Rounded Acme | 2:1 | 0.096" | 39/64" | __ | Not Rated | 25 | 0000000 | 000000 |
A | 5/32"-21.3 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 2 | Rounded Acme | 2:1 | 0.094" | 39/64" | __ | Not Rated | 25 | 0000000 | 00000 |
A | 3/16"-42.7 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 16 | Rounded Acme | 16:1 | 0.375" | 39/64" | __ | Not Rated | 25 | 0000000 | 00000 |
A | 7/32"-20.8 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 4 | Rounded Acme | 4:1 | 0.192" | 39/64" | __ | Not Rated | 25 | 0000000 | 00000 |
B | 1/4"-8 | 1" | 0.5" | 1" | __ | __ | 3/16" | 8 | Rounded Acme | 8:1 | 1" | __ | 3/4" | 9,700 | 50 | 0000000 | 00000 |
B | 1/4"-16 | 1" | 0.5" | 1" | __ | __ | 3/16" | 4 | Rounded Acme | 4:1 | 0.25" | __ | 3/4" | 9,700 | 50 | 0000000 | 00000 |
B | 1/4"-20 | 1" | 0.5" | 1" | __ | __ | 3/16" | 2 | Rounded Acme | 2:1 | 0.1" | __ | 3/4" | 9,700 | 50 | 00000000 | 00000 |
B | 3/8"-5 | 1" | 0.625" | 1 7/64" | __ | __ | 3/16" | 5 | Rounded Acme | 5:1 | 1" | __ | 7/8" | 9,700 | 75 | 0000000 | 00000 |
B | 3/8"-8 | 1" | 0.625" | 1 7/64" | __ | __ | 3/16" | 4 | Rounded Acme | 4:1 | 0.5" | __ | 7/8" | 9,700 | 75 | 0000000 | 00000 |
B | 3/8"-10 | 1" | 0.625" | 1 7/64" | __ | __ | 3/16" | 2 | Rounded Acme | 2:1 | 0.2" | __ | 7/8" | 9,700 | 75 | 0000000 | 00000 |
B | 3/8"-12 | 1" | 0.625" | 1 7/64" | __ | __ | 3/16" | 3 | Rounded Acme | 3:1 | 0.25" | __ | 7/8" | 9,700 | 75 | 00000000 | 00000 |
B | 1/2"-8 | 1 1/2" | 0.75" | 1 1/2" | __ | __ | 3/16" | 2 | Rounded Acme | 2:1 | 0.25" | __ | 1 1/8" | 9,700 | 150 | 00000000 | 00000 |
B | 1/2"-8 | 1 1/2" | 0.75" | 1 1/2" | __ | __ | 3/16" | 4 | Rounded Acme | 4:1 | 0.5" | __ | 1 1/8" | 9,700 | 150 | 0000000 | 00000 |
B | 1/2"-8 | 1 1/2" | 0.75" | 1 1/2" | __ | __ | 3/16" | 8 | Rounded Acme | 8:1 | 1" | __ | 1 1/8" | 9,700 | 150 | 0000000 | 00000 |
B | 1/2"-10 | 1 1/2" | 0.75" | 1 1/2" | __ | __ | 3/16" | 2 | Rounded Acme | 2:1 | 0.2" | __ | 1 1/8" | 9,700 | 150 | 0000000 | 00000 |
B | 5/8"-6 | 1 1/2" | 0.875" | 1 1/2" | __ | __ | 3/16" | 12 | Rounded Acme | 12:1 | 2" | __ | 1 3/16" | 9,700 | 220 | 00000000 | 00000 |
B | 5/8"-8 | 1 1/2" | 0.875" | 1 1/2" | __ | __ | 3/16" | 4 | Rounded Acme | 4:1 | 0.5" | __ | 1 3/16" | 9,700 | 220 | 00000000 | 00000 |
B | 3/4"-8 | 2" | 1.125" | 1 3/4" | __ | __ | 1/4" | 8 | Rounded Acme | 8:1 | 1" | __ | 1 7/16" | 9,000 | 350 | 00000000 | 00000 |
B | 3/4"-8 | 2" | 1.125" | 1 51/64" | __ | __ | 1/4" | 2 | Rounded Acme | 2:1 | 0.25" | __ | 1 7/16" | 9,700 | 350 | 0000000 | 00000 |
Acetal Plastic with Wear-Compensating Internal O-Ring | |||||||||||||||||
A | 9/64"-20.8 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 2 | Rounded Acme | 2:1 | 0.096" | 39/64" | __ | Not Rated | 5 | 0000000 | 00000 |
A | 5/32"-21.3 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 2 | Rounded Acme | 2:1 | 0.094" | 39/64" | __ | Not Rated | 5 | 0000000 | 00000 |
A | 3/16"-42.7 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 16 | Rounded Acme | 16:1 | 0.375" | 39/64" | __ | Not Rated | 5 | 0000000 | 00000 |
A | 7/32"-20.8 | 1/2" | 0.406" | __ | 3/4" | 13/32" | 1/8" | 4 | Rounded Acme | 4:1 | 0.192" | 39/64" | __ | Not Rated | 5 | 0000000 | 00000 |
Acetal Plastic with Wear-Compensating Spring | |||||||||||||||||
B | 3/4"-8 | 2 45/64" | 1.563" | 2 13/32" | __ | __ | 5/16" | 2 | Rounded Acme | 2:1 | 0.25" | __ | 2" | 9,700 | 150 | 0000000 | 000000 |
C | 1/4"-8 | 1" | 0.5" | 1" | __ | __ | 3/16" | 8 | Rounded Acme | 8:1 | 1" | __ | 3/4" | 9,700 | 5 | 0000000 | 00000 |
C | 1/4"-16 | 1" | 0.5" | 1" | __ | __ | 3/16" | 4 | Rounded Acme | 4:1 | 0.25" | __ | 3/4" | 9,700 | 5 | 0000000 | 00000 |
C | 1/4"-20 | 1" | 0.5" | 1" | __ | __ | 3/16" | 2 | Rounded Acme | 2:1 | 0.1" | __ | 3/4" | 9,700 | 5 | 00000000 | 00000 |
C | 3/8"-5 | 1 29/32" | 0.703" | 1 1/2" | __ | __ | 3/16" | 5 | Rounded Acme | 5:1 | 1" | __ | 1 1/8" | 9,700 | 10 | 0000000 | 00000 |
C | 3/8"-8 | 1 29/32" | 0.703" | 1 1/2" | __ | __ | 3/16" | 4 | Rounded Acme | 4:1 | 0.5" | __ | 1 1/8" | 9,700 | 10 | 0000000 | 00000 |
C | 3/8"-10 | 1 29/32" | 0.703" | 1 1/2" | __ | __ | 3/16" | 2 | Rounded Acme | 2:1 | 0.2" | __ | 1 1/8" | 9,700 | 10 | 0000000 | 00000 |
C | 3/8"-12 | 1 29/32" | 0.703" | 1 1/2" | __ | __ | 3/16" | 3 | Rounded Acme | 3:1 | 0.25" | __ | 1 1/8" | 9,700 | 10 | 00000000 | 00000 |
C | 1/2"-8 | 2" | 0.891" | 1 39/64" | __ | __ | 17/64" | 2 | Rounded Acme | 2:1 | 0.25" | __ | 1 1/4" | 9,700 | 25 | 00000000 | 00000 |
C | 1/2"-8 | 2" | 0.891" | 1 39/64" | __ | __ | 17/64" | 4 | Rounded Acme | 4:1 | 0.5" | __ | 1 1/4" | 9,700 | 25 | 0000000 | 00000 |
C | 1/2"-8 | 2" | 0.891" | 1 39/64" | __ | __ | 17/64" | 8 | Rounded Acme | 8:1 | 1" | __ | 1 1/4" | 9,700 | 25 | 0000000 | 00000 |
C | 1/2"-10 | 2" | 0.891" | 1 39/64" | __ | __ | 17/64" | 2 | Rounded Acme | 2:1 | 0.2" | __ | 1 1/4" | 9,700 | 25 | 0000000 | 00000 |
C | 5/8"-6 | 2" | 1.063" | 1 51/64" | __ | __ | 17/64" | 12 | Rounded Acme | 12:1 | 2" | __ | 1 3/8" | 9,700 | 35 | 00000000 | 00000 |
C | 5/8"-8 | 2" | 1.063" | 1 51/64" | __ | __ | 17/64" | 4 | Rounded Acme | 4:1 | 0.5" | __ | 1 3/8" | 9,700 | 35 | 00000000 | 00000 |