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Precision Acme Lead Screws and Nuts
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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.
Round Nuts—Right-Hand Thread
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Iron—Iron nuts have good machinability and high strength.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | ||||||||||||||
| 3/8"-12 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.083" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A111 | 000000 | ||
| 3/8"-16 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.063" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A529 | 00000 | ||
| 1/2"-10 | 1" | 1.469" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A115 | 00000 | ||
| 5/8"-5 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A513 | 00000 | ||
| 5/8"-8 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.125" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A119 | 00000 | ||
| 5/8"-10 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A525 | 00000 | ||
| 3/4"-5 | 1 1/2" | 2.234" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A123 | 00000 | ||
| 3/4"-6 | 1 1/2" | 2.234" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A127 | 00000 | ||
| 3/4"-10 | 1 1/2" | 2.234" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A526 | 00000 | ||
| 7/8"-6 | 2" | 2.985" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Not Rated | Not Rated | Not Rated | 95365A631 | 00000 | ||
| 1"-4 | 2" | 2.984" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A506 | 00000 | ||
| 1"-5 | 2" | 2.984" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A131 | 000000 | ||
| 1"-6 | 2" | 2.984" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A135 | 00000 | ||
| 1"-10 | 2" | 2.984" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A139 | 000000 | ||
| 1 1/4"-4 | 2 1/2" | 3.734" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A507 | 000000 | ||
| 1 1/4"-5 | 2 1/2" | 3.734" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A143 | 000000 | ||
| 1 1/2"-4 | 3" | 4.469" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A147 | 000000 | ||
Round Nuts—Left-Hand Thread
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Iron—Iron nuts have good machinability and high strength.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | ||||||||||||||
| 3/8"-12 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.083" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A311 | 000000 | ||
| 3/8"-16 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.063" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A629 | 00000 | ||
| 1/2"-10 | 1" | 1.469" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A315 | 00000 | ||
| 5/8"-5 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A613 | 00000 | ||
| 5/8"-8 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.125" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A319 | 00000 | ||
| 5/8"-10 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A625 | 00000 | ||
| 3/4"-5 | 1 1/2" | 2.234" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A323 | 00000 | ||
| 3/4"-6 | 1 1/2" | 2.234" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A327 | 00000 | ||
| 3/4"-10 | 1 1/2" | 2.234" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A626 | 00000 | ||
| 1"-4 | 2" | 2.984" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A606 | 000000 | ||
| 1"-5 | 2" | 2.984" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A331 | 000000 | ||
| 1"-6 | 2" | 2.984" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A335 | 00000 | ||
| 1"-10 | 2" | 2.984" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A339 | 00000 | ||
| 1 1/4"-4 | 2 1/2" | 3.734" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A607 | 000000 | ||
| 1 1/4"-5 | 2 1/2" | 3.734" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A343 | 000000 | ||
| 1 1/2"-4 | 3" | 4.469" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A347 | 000000 | ||
Fast-Travel Precision Acme Lead Screws and Nuts
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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.
Round Nuts—Right-Hand Thread
 |
Iron—Iron nuts have good machinability and high strength.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | ||||||||||||||
| 1/2"-8 | 1" | 1.469" | Acme | 2:1 | 2 | 0.25" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A505 | 000000 | ||
| 1/2"-10 | 1" | 1.469" | Acme | 2:1 | 2 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | 95365A512 | 00000 | ||
