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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Threading Threading |
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![]() | Partially Threaded |
Thread Spacing Thread Spacing |
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Material Material |
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Thread Direction Thread Direction |
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Component Component |
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![]() | Nut |
Coupling Nut Profile Coupling Nut Profile |
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Height Height |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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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Drive Style Drive Style |
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Travel Distance per Turn Travel Distance per Turn |
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Hardness Hardness |
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Tensile Strength Tensile Strength |
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About Nuts, Materials, and Finishes
More
Selecting Compatible Lead Screws and Nuts
More
Steel Extra-Long Coupling Nuts

Also known as sleeve nuts, these are at least twice the length of standard coupling nuts to provide more room to connect and extend long lengths of threaded rods.
For technical drawings and 3-D models, click on a part number.
Each | ||||||
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Thread Size | Lg. | Wd. | Threading | 1-9 | 10-Up | |
Steel | ||||||
2 1/2"-4 | 10" | 4" | Partially Threaded | 000000000 | 0000000 | 0000000 |
Acme Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction and size.
Carbon steel components are easier to machine than alloy steel components.
Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.

Coupling nuts connect two lead screws.
Thread Size | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Each | |
Carbon Steel | |||||||||
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2 1/2"-4 | 5" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | 000000000 | 0000000 |