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System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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Travel Length Travel Length |
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Component Component |
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Thread Direction Thread Direction |
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Right Hand and Left Hand |
Nut Type Nut Type |
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![]() | Square |
Threading Threading |
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![]() | Partially Threaded |
Thread Type Thread Type |
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Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
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Screw Diameter Screw Diameter |
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Travel Distance per Turn Travel Distance per Turn |
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Number of Thread Starts Number of Thread Starts |
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Hardness Hardness |
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Tensile Strength Tensile Strength |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Overall Height Overall Height |
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Overall Width Overall Width |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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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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Selecting Compatible Lead Screws and Nuts
More
Self-Reversing Lead Screws and Nuts


A crisscross thread pattern allows you to drive the nut back and forth without changing the lead screw's direction of rotation. When the nut reaches one end of the lead screw, it changes direction and travels back to the other end. Also known as diamond lead screws, they're sometimes used to guide cable and wire as it's spooled on a reel.
Travel distance per turn, also known as screw lead, is the distance the nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Lead Screw | Square Nut | |||||||||||||
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Screw Dia. | Lg. | Travel Lg. | Hardness | Overall Ht. | Center Ht. | Hardness | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
1144 Carbon Steel Lead Screw with Aluminum Square Nut | ||||||||||||||
3/4" | 16 7/8" | 5 13/16" | Rockwell C27 | 1 7/8" | 11/16" | Brinell 60 | 1 | 0.75" | ±0.007" per in. | 130,000 | 100 | -50° to 350° | 000000000 | 000000000 |