System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Type Thread Type |
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Component Component |
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 | Nut |
Nut Type Nut Type |
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| Externally Threaded | Round |
Thread Direction Thread Direction |
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Hardness Hardness |
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Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Tensile Strength Tensile Strength |
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Thread Fit Thread Fit |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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External Thread Size External Thread Size |
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External Thread Length External Thread Length |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Fabrication Fabrication |
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Selecting Compatible Lead Screws and Nuts
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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.
Cast iron nuts have good machinability and high strength. 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. | 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 | |||||||||||
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| 1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
932 Bearing Bronze | |||||||||||
| 1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 1,300 | __ | 0000000 | 00000 |
PET Plastic | |||||||||||
| 1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Not Rated | 650 | 15° to 175° | 0000000 | 00000 |
Combine externally threaded nuts with a flange to create a custom flange nut.
External Thread | |||||||||||||
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| 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 | |
673 Bronze | |||||||||||||
| 1/2"-8 | 3/4" | 1.125" | 2 | 2:1 | 0.25" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 000000 |
| 1/2"-8 | 3/4" | 1.125" | 8 | 8:1 | 1" | 15/16"-16 | 1/2" | Class 2C | Brinell 70 | Not Rated | __ | 000000000 | 00000 |
PET Plastic | |||||||||||||
| 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 |
