System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Material Material |
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Number of Thread Starts Number of Thread Starts |
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Threading Threading |
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![]() | Fully Threaded |
Travel Distance per Turn Travel Distance per Turn |
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Nut Type Nut Type |
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![]() | Flange |
Thread Direction Thread Direction |
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Speed Ratio Speed Ratio |
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Tensile Strength Tensile Strength |
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Diameter Diameter |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Hardness Hardness |
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Flange Diameter Flange Diameter |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Thread Type Thread Type |
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Flange Material Flange Material |
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Bolt Circle Diameter Bolt Circle Diameter |
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Flange Hardness Flange Hardness |
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Flange Thickness Flange Thickness |
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Selecting Compatible Lead Screws and Nuts
More
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 | ||||||||||
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1/4"-8 | 3ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 00000000 | 0000000 |
1/4"-8 | 6ft. | 8 | Rounded Acme | 8:1 | 1" | ±0.0006" per in. | Brinell 160 | 90,000 | 0000000 | 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 | ||||||||||||||
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Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn | Bolt Circle Dia. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Each | ||
Acetal Plastic | ||||||||||||||
B | 1/4"-8 | 1" | 0.5" | 1" | 3/16" | 8 | Rounded Acme | 8:1 | 1" | 3/4" | 9,700 | 50 | 0000000 | 000000 |
Acetal Plastic with Wear-Compensating Spring | ||||||||||||||
C | 1/4"-8 | 1" | 0.5" | 1" | 3/16" | 8 | Rounded Acme | 8:1 | 1" | 3/4" | 9,700 | 5 | 0000000 | 00000 |