Selecting Compatible Lead Screws and Nuts
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Precision Acme Lead Screws and Nuts
Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
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.
Platform nuts have wide, machinable surfaces for custom mounting.
| Thread Size  | Lg. | Wd. | Ht. | Center Ht. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Each | |
932 Bearing Bronze | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2"-10 | 1 3/4" | 2" | 1 1/8" | 5/8" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 1,200 | 000000 | 0000000 |
| 3/4"-5 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 2,800 | 000000 | 000000 |
| 3/4"-6 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 2,800 | 000000 | 000000 |
| 3/4"-10 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 2,800 | 0000000 | 000000 |
| 1"-4 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 5,000 | 000000 | 000000 |
| 1"-5 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 5,000 | 000000 | 000000 |
| 1"-6 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 5,000 | 000000 | 000000 |
| 1"-10 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 5,000 | 0000000 | 000000 |
| 1 1/2"-4 | 4 1/2" | 3 5/8" | 2 9/16" | 1 1/2" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 11,000 | 000000 | 000000 |
Platform nuts have wide, machinable surfaces for custom mounting.
| Thread Size | Lg. | Wd. | Ht. | Center Ht. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Each | |
932 Bearing Bronze | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2"-10 | 1 3/4" | 2" | 1 1/8" | 5/8" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 1,200 | 0000000 | 0000000 |
| 3/4"-5 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 2,800 | 0000000 | 000000 |
| 3/4"-6 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 2,800 | 0000000 | 000000 |
| 3/4"-10 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 2,800 | 0000000 | 000000 |
| 1"-4 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 5,000 | 0000000 | 000000 |
| 1"-5 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 5,000 | 0000000 | 000000 |
| 1"-6 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 5,000 | 0000000 | 000000 |
| 1"-10 | 3" | 3" | 1 15/16" | 1 1/8" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 5,000 | 0000000 | 000000 |
| 1 1/2"-4 | 4 1/2" | 3 5/8" | 2 9/16" | 1 1/2" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 11,000 | 0000000 | 000000 |