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About Lead Screws and Nuts
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Compare lead screws and nuts by the size, direction, fit, and starts of their threads.
Acme Lead Screws and Nuts
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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, thread size, and number of thread starts.
Thumb Nuts—Right-Hand Thread
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Thumb nuts fasten and position lead screw components. Thumb nuts are easy to grip and tighten by hand for quick assembly and disassembly.
Cast Iron—Cast iron components have good machinability and high strength.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cast Iron | |||||||||||||
| 5/8"-8 | Acme | 1 3/16" | 2 3/4" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B97 | Not Rated | 98675A119 | 000000 | ||
Flat Handles—Right-Hand Thread
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Handles fasten and position lead screw components. Handles are easy to grip and tighten by hand for quick assembly and disassembly.
Cast Iron—Cast iron components have good machinability and high strength.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cast Iron | |||||||||||||
| 5/8"-8 | Acme | 1 1/8" | 9 1/2" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B72 | Not Rated | 92428A743 | 000000 | ||
Offset Handles—Right-Hand Thread
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Handles fasten and position lead screw components. Handles are easy to grip and tighten by hand for quick assembly and disassembly.
Cast Iron—Cast iron components have good machinability and high strength.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cast Iron | |||||||||||||
| 5/8"-8 | Acme | 2 1/4" | 4 3/4" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B67 | Not Rated | 98890A119 | 000000 | ||
