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. Cast iron nuts have good machinability and high strength. PET plastic nuts are lightweight and corrosion resistant. PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent 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.
| Thread Size  | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
Cast Iron | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8"-8 | 3/4" | 1.344" | 1 | 1:1 | 0.125" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 3/8"-10 | 3/4" | 1.344" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/8"-12 | 3/4" | 1.344" | 1 | 1:1 | 0.083" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/8"-16 | 3/4" | 1.344" | 1 | 1:1 | 0.063" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 5/8"-5 | 1 1/4" | 1.859" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 5/8"-8 | 1 1/4" | 1.859" | 1 | 1:1 | 0.125" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 5/8"-10 | 1 1/4" | 1.859" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2.234" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/4"-6 | 1 1/2" | 2.234" | 1 | 1:1 | 0.167" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/4"-10 | 1 1/2" | 2.234" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 7/8"-6 | 2" | 2.985" | 1 | 1:1 | 0.167" | Class 2C | Not Rated | Not Rated | __ | 000000000 | 00000 |
| 1"-4 | 2" | 2.984" | 1 | 1:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1"-5 | 2" | 2.984" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1"-6 | 2" | 2.984" | 1 | 1:1 | 0.167" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1"-10 | 2" | 2.984" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1 1/4"-4 | 2 1/2" | 3.734" | 1 | 1:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1 1/4"-5 | 2 1/2" | 3.734" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1 1/2"-4 | 3" | 4.469" | 1 | 1:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
932 Bearing Bronze | |||||||||||
| 3/8"-8 | 3/4" | 1.344" | 1 | 1:1 | 0.125" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-12 | 3/4" | 1.344" | 1 | 1:1 | 0.083" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-16 | 3/4" | 1.344" | 1 | 1:1 | 0.063" | Class 2C | Brinell 65 | 700 | __ | 0000000 | 00000 |
| 1/2"-10 | 1" | 1.465" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 1,300 | __ | 00000000 | 00000 |
| 5/8"-5 | 1 1/4" | 1.859" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 2,000 | __ | 0000000 | 00000 |
| 5/8"-8 | 1 1/4" | 1.859" | 1 | 1:1 | 0.125" | Class 2C | Brinell 65 | 2,000 | __ | 00000000 | 00000 |
| 5/8"-10 | 1 1/4" | 1.859" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 2,000 | __ | 00000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2.234" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 2,900 | __ | 00000000 | 000000 |
| 3/4"-6 | 1 1/2" | 2.234" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 2,900 | __ | 00000000 | 000000 |
| 3/4"-10 | 1 1/2" | 2.234" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 2,900 | __ | 00000000 | 000000 |
| 1"-4 | 2" | 2.984" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1"-5 | 2" | 2.984" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1"-6 | 2" | 2.984" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1"-10 | 2" | 2.984" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1 1/4"-4 | 2 1/2" | 3.734" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 7,850 | __ | 00000000 | 000000 |
| 1 1/4"-5 | 2 1/2" | 3.734" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 7,850 | __ | 00000000 | 000000 |
| 1 1/2"-4 | 3" | 4.469" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 12,000 | __ | 00000000 | 000000 |
PET Plastic | |||||||||||
| 3/8"-8 | 3/4" | 1.344" | 1 | 1:1 | 0.125" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-12 | 3/4" | 1.344" | 1 | 1:1 | 0.083" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-16 | 3/4" | 1.344" | 1 | 1:1 | 0.063" | Class 2C | Not Rated | 350 | 15° to 175° | 0000000 | 00000 |
| 1/2"-10 | 1" | 1.465" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 650 | 15° to 175° | 00000000 | 00000 |
| 5/8"-5 | 1 1/4" | 1.859" | 1 | 1:1 | 0.2" | Class 2C | Not Rated | 1,000 | 15° to 175° | 0000000 | 00000 |
| 5/8"-8 | 1 1/4" | 1.859" | 1 | 1:1 | 0.125" | Class 2C | Not Rated | 1,000 | 15° to 175° | 00000000 | 00000 |
| 5/8"-10 | 1 1/4" | 1.859" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 1,000 | 15° to 175° | 00000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2.234" | 1 | 1:1 | 0.2" | Class 2C | Not Rated | 1,450 | 15° to 175° | 00000000 | 000000 |
| 3/4"-6 | 1 1/2" | 2.234" | 1 | 1:1 | 0.167" | Class 2C | Not Rated | 1,450 | 15° to 175° | 00000000 | 000000 |
| 3/4"-10 | 1 1/2" | 2.234" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 1,450 | 15° to 175° | 00000000 | 000000 |
PEEK Plastic | |||||||||||
| 1/2"-10 | 1" | 1.5" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 5,650 | -40° to 525° | 000000000 | 000000 |
| Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
Cast Iron | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8"-8 | 3/4" | 1.344" | 1 | 1:1 | 0.125" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 3/8"-10 | 3/4" | 1.344" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/8"-12 | 3/4" | 1.344" | 1 | 1:1 | 0.083" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/8"-16 | 3/4" | 1.344" | 1 | 1:1 | 0.063" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 5/8"-5 | 1 1/4" | 1.859" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 5/8"-8 | 1 1/4" | 1.859" | 1 | 1:1 | 0.125" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 5/8"-10 | 1 1/4" | 1.859" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2.234" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/4"-6 | 1 1/2" | 2.234" | 1 | 1:1 | 0.167" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/4"-10 | 1 1/2" | 2.234" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1"-4 | 2" | 2.984" | 1 | 1:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1"-5 | 2" | 2.984" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1"-6 | 2" | 2.984" | 1 | 1:1 | 0.167" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1"-10 | 2" | 2.984" | 1 | 1:1 | 0.1" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1 1/4"-4 | 2 1/2" | 3.734" | 1 | 1:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1 1/4"-5 | 2 1/2" | 3.734" | 1 | 1:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 1 1/2"-4 | 3" | 4.469" | 1 | 1:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
932 Bearing Bronze | |||||||||||
| 3/8"-8 | 3/4" | 1.344" | 1 | 1:1 | 0.125" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-12 | 3/4" | 1.344" | 1 | 1:1 | 0.083" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 1/2"-10 | 1" | 1.465" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 1,300 | __ | 00000000 | 00000 |
| 5/8"-8 | 1 1/4" | 1.859" | 1 | 1:1 | 0.125" | Class 2C | Brinell 65 | 2,000 | __ | 00000000 | 00000 |
| 5/8"-10 | 1 1/4" | 1.859" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 2,000 | __ | 00000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2.234" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 2,900 | __ | 00000000 | 000000 |
| 3/4"-6 | 1 1/2" | 2.234" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 2,900 | __ | 00000000 | 000000 |
| 3/4"-10 | 1 1/2" | 2.234" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 2,900 | __ | 00000000 | 000000 |
| 1"-4 | 2" | 2.984" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1"-5 | 2" | 2.984" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1"-6 | 2" | 2.984" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1"-10 | 2" | 2.984" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 5,000 | __ | 00000000 | 000000 |
| 1 1/4"-4 | 2 1/2" | 3.734" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 7,850 | __ | 00000000 | 000000 |
| 1 1/4"-5 | 2 1/2" | 3.734" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 7,850 | __ | 00000000 | 000000 |
| 1 1/2"-4 | 3" | 4.469" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 12,000 | __ | 00000000 | 000000 |
PET Plastic | |||||||||||
| 3/8"-8 | 3/4" | 1.344" | 1 | 1:1 | 0.125" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-12 | 3/4" | 1.344" | 1 | 1:1 | 0.083" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 1/2"-10 | 1" | 1.465" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 650 | 15° to 175° | 00000000 | 00000 |
| 5/8"-8 | 1 1/4" | 1.859" | 1 | 1:1 | 0.125" | Class 2C | Not Rated | 1,000 | 15° to 175° | 00000000 | 00000 |
| 5/8"-10 | 1 1/4" | 1.859" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 1,000 | 15° to 175° | 00000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2.234" | 1 | 1:1 | 0.2" | Class 2C | Not Rated | 1,450 | 15° to 175° | 00000000 | 000000 |
| 3/4"-6 | 1 1/2" | 2.234" | 1 | 1:1 | 0.167" | Class 2C | Not Rated | 1,450 | 15° to 175° | 00000000 | 000000 |
| 3/4"-10 | 1 1/2" | 2.234" | 1 | 1:1 | 0.1" | Class 2C | Not Rated | 1,450 | 15° to 175° | 00000000 | 000000 |
Fast-Travel Precision Acme Lead Screws and Nuts
Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. The threads have a tight thread fit for accurate, repeatable starts and stops. Pair with a motor in automated motion and positioning applications. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
Cast iron nuts have good machinability and high strength. 932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance. PET plastic nuts are lightweight and corrosion resistant.
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.
| Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
Cast Iron | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 000000 |
| 3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 2 | 2:1 | 0.2" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Brinell 217 | Not Rated | __ | 000000000 | 00000 |
932 Bearing Bronze | |||||||||||
| 1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Brinell 65 | 320 | __ | 00000000 | 00000 |
| 3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Brinell 65 | 700 | __ | 00000000 | 00000 |
| 1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 1,300 | __ | 0000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 2 | 2:1 | 0.2" | Class 2C | Brinell 65 | 1,300 | __ | 0000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Brinell 65 | 1,300 | __ | 00000000 | 00000 |
PET Plastic | |||||||||||
| 1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Not Rated | 160 | 15° to 175° | 00000000 | 00000 |
| 3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Not Rated | 350 | 15° to 175° | 00000000 | 00000 |
| 1/2"-8 | 1" | 1.469" | 2 | 2:1 | 0.25" | Class 2C | Not Rated | 650 | 15° to 175° | 0000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 2 | 2:1 | 0.2" | Class 2C | Not Rated | 650 | 15° to 175° | 0000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Not Rated | 650 | 15° to 175° | 00000000 | 00000 |
| Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Each | |
932 Bearing Bronze | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/4"-12 | 3/4" | 1.344" | 4 | 4:1 | 0.333" | Class 2C | Brinell 65 | 320 | 00000000 | 000000 |
| 3/8"-8 | 3/4" | 1.344" | 2 | 2:1 | 0.25" | Class 2C | Brinell 65 | 700 | 00000000 | 00000 |
| 3/8"-8 | 3/4" | 1.344" | 4 | 4:1 | 0.5" | Class 2C | Brinell 65 | 700 | 00000000 | 00000 |
| 3/8"-10 | 3/4" | 1.344" | 2 | 2:1 | 0.2" | Class 2C | Brinell 65 | 700 | 00000000 | 00000 |
| 1/2"-10 | 1" | 1.469" | 5 | 5:1 | 0.5" | Class 2C | Brinell 65 | 1,300 | 00000000 | 00000 |
Metric Precision 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, select components that have the same thread direction, size, pitch, and number of thread starts.
932 bearing bronze nuts have good machinability and wear 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.
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
932 Bearing Bronze | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 3/4" | 0.75" | 1 | 1:1 | 2 | 7H | Brinell 70 | Not Rated | 670 | DIN 103 | 0000000 | 000000 |
| M12 | 3 | 1" | 0.875" | 1 | 1:1 | 3 | 7H | Brinell 70 | Not Rated | 1,100 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1 1/8" | 1.125" | 1 | 1:1 | 3 | 7H | Brinell 70 | Not Rated | 2,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1 1/2" | 1.25" | 1 | 1:1 | 4 | 7H | Brinell 70 | Not Rated | 3,100 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | 7H | Brinell 70 | Not Rated | 4,500 | DIN 103 | 0000000 | 00000 |
| M28 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | 7H | Brinell 69 | 44,000 | 6,100 | DIN 103 | 0000000 | 00000 |
| M40 | 7 | 3" | 2.5" | 1 | 1:1 | 7 | 7H | Brinell 70 | Not Rated | 12,300 | DIN 103 | 0000000 | 00000 |
Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size, thread pitch, and number of thread starts.
Acetal nuts have good wear and 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.
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap. | Each | ||
Acetal Plastic | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | M8 | 2.5 | 15/32" | 0.709" | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | Durometer 74D | 10,000 | Not Rated | 0000000 | 000000 |
| A | M10 | 3 | 25/32" | 0.866" | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | Durometer 74D | 10,000 | Not Rated | 0000000 | 00000 |
| A | M12 | 2.5 | 15/16" | 1.024" | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | Durometer 74D | 10,000 | Not Rated | 0000000 | 00000 |
| A | M16 | 5 | 1 17/64" | 1.417" | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | Durometer 74D | 10,000 | Not Rated | 0000000 | 00000 |
| A | M20 | 5 | 1 37/64" | 1.772" | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | Durometer 74D | 10,000 | Not Rated | 0000000 | 00000 |
| A | M20 | 7.5 | 1 37/64" | 1.772" | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | Durometer 74D | 10,000 | Not Rated | 0000000 | 00000 |
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, thread size, and number of thread starts.
Cast iron components have good machinability and high strength. 360 brass components have excellent machinability and good corrosion resistance. 932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair 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.
Round nuts move objects along the length of a lead screw.
| Thread Size | Ht. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Specifications Met | Each | |
Cast Iron | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2"-10 | 1" | 1 15/32" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B96 | __ | 000000000 | 000000 |
| 5/8"-8 | 1 1/4" | 1 55/64" | 1 | 1:1 | 0.125" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2 15/64" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 3/4"-6 | 1 1/2" | 2 15/64" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 1"-5 | 2" | 2 63/64" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 1"-6 | 2" | 2 63/64" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 1"-10 | 2" | 2 63/64" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 1 1/4"-5 | 2 1/2" | 3 47/64" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B96 | __ | 000000000 | 000000 |
| 1 1/2"-4 | 3" | 4 15/32" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B96 | __ | 000000000 | 000000 |
360 Brass | ||||||||||
| 3/8"-12 | 3/8" | 3/4" | 1 | 1:1 | 0.083" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 0000 |
| 1/2"-10 | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 0000 |
| 5/8"-8 | 5/8" | 1" | 1 | 1:1 | 0.125" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-5 | 3/4" | 1 1/4" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-6 | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 7/8"-6 | 7/8" | 1 1/2" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-5 | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-6 | 1" | 1 5/8" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-10 | 1" | 1 5/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/4"-5 | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/2"-4 | 1 1/2" | 2 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
932 Bearing Bronze | ||||||||||
| 1/4"-16 | 17/32" | 25/32" | 1 | 1:1 | 0.063" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 3/8"-12 | 3/4" | 7/8" | 1 | 1:1 | 0.083" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1/2"-10 | 29/32" | 29/32" | 1 | 1:1 | 0.1" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 5/8"-8 | 1 1/32" | 1 9/32" | 1 | 1:1 | 0.125" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 3/4"-5 | 1 9/32" | 1 13/32" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 3/4"-6 | 1 17/64" | 1 13/32" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 7/8"-6 | 1 17/32" | 1 21/32" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1"-4 | 1 17/32" | 1 21/32" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1"-5 | 1 17/32" | 1 21/32" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1"-6 | 1 17/32" | 1 21/32" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1"-10 | 1 17/32" | 1 21/32" | 1 | 1:1 | 0.1" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1 1/4"-4 | 2 1/64" | 2 5/32" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1 1/4"-5 | 2 1/64" | 2 5/32" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1 1/2"-4 | 3" | 2 25/32" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | ASTM B505 | 000000000 | 000000 |
| 2"-4 | 4 1/64" | 3 9/32" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | ASTM B505 | 000000000 | 000000 |
Round nuts move objects along the length of a lead screw.
| Thread Size | Ht. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Specifications Met | Each | |
Cast Iron | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2"-10 | 1" | 1 15/32" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B96 | __ | 000000000 | 000000 |
| 5/8"-8 | 1 1/4" | 1 55/64" | 1 | 1:1 | 0.125" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 3/4"-5 | 1 1/2" | 2 15/64" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 3/4"-6 | 1 1/2" | 2 15/64" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B96 | __ | 000000000 | 00000 |
| 1"-5 | 2" | 2 63/64" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B96 | __ | 000000000 | 000000 |
360 Brass | ||||||||||
| 1/2"-10 | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 0000 |
| 5/8"-8 | 5/8" | 1" | 1 | 1:1 | 0.125" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-5 | 3/4" | 1 1/4" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-6 | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 7/8"-6 | 7/8" | 1 1/2" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-5 | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-6 | 1" | 1 5/8" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-10 | 1" | 1 5/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/4"-5 | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
932 Bearing Bronze | ||||||||||
| 1/2"-10 | 29/32" | 29/32" | 1 | 1:1 | 0.1" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 5/8"-8 | 1 1/32" | 1 9/32" | 1 | 1:1 | 0.125" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 3/4"-5 | 1 9/32" | 1 13/32" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 3/4"-6 | 1 9/32" | 1 13/32" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1"-5 | 1 17/32" | 1 21/32" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |
| 1 1/4"-5 | 2 1/64" | 2 5/32" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | ASTM B505 | 000000000 | 00000 |