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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Thread Type Thread Type |
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Nut Type Nut Type |
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Material Material |
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Component Component |
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Thread Direction Thread Direction |
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Width Width |
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Number of Thread Starts Number of Thread Starts |
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Speed Ratio Speed Ratio |
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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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Thread Fit Thread Fit |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Finish Finish |
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Selecting Compatible Lead Screws and Nuts
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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. Zinc-plated carbon steel components have mild corrosion resistance. 18-8 stainless steel components have good corrosion resistance.
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.
Hex nuts fasten and position lead screw components.
| Thread Size | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Each | |
Carbon Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2 1/4"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | 000000000 | 000000 |
Zinc-Plated Carbon Steel | |||||||||
| 2 1/4"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | 000000000 | 000000 |
18-8 Stainless Steel | |||||||||
| 2 1/4"-4 | 2 31/64" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B97 | 000000000 | 000000 |
V-Belts
