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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.
Round Nuts—Right-Hand Thread
 |
Iron—Iron nuts have good machinability and high strength.
932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
PET—PET plastic nuts are lightweight and corrosion resistant.
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. | Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | |||||||||||||||
| 5/8"-5 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | — | 95365A513 | 000000 | ||
| 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 | ||
932 Bearing Bronze | |||||||||||||||
| 5/8"-5 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 2,000 lb. | — | 1343K23 | 00000 | ||
| 5/8"-8 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.125" | Acme Class 2C | Brinell 65 | Not Rated | 2,000 lb. | — | 1343K132 | 00000 | ||
| 5/8"-10 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 2,000 lb. | — | 1343K135 | 00000 | ||
PET | |||||||||||||||
| 5/8"-5 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Not Rated | Not Rated | 1,000 lb. | 15 to 175 | 1349K23 | 00000 | ||
| 5/8"-8 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.125" | Acme Class 2C | Not Rated | Not Rated | 1,000 lb. | 15 to 175 | 1349K136 | 00000 | ||
| 5/8"-10 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Not Rated | Not Rated | 1,000 lb. | 15 to 175 | 1349K143 | 00000 | ||
Round Nuts—Left-Hand Thread
|
Iron—Iron nuts have good machinability and high strength.
932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
PET—PET plastic nuts are lightweight and corrosion resistant.
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. | Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | |||||||||||||||
| 5/8"-5 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | — | 95365A613 | 000000 | ||
| 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 | ||
932 Bearing Bronze | |||||||||||||||
| 5/8"-8 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.125" | Acme Class 2C | Brinell 65 | Not Rated | 2,000 lb. | — | 1343K232 | 00000 | ||
| 5/8"-10 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 2,000 lb. | — | 1343K235 | 00000 | ||
PET | |||||||||||||||
| 5/8"-8 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.125" | Acme Class 2C | Not Rated | Not Rated | 1,000 lb. | 15 to 175 | 1349K137 | 00000 | ||
| 5/8"-10 | 1 1/4" | 1.859" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Not Rated | Not Rated | 1,000 lb. | 15 to 175 | 1349K144 | 00000 | ||
Externally Threaded Nuts—Right-Hand Thread
 |
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Temp., ° F | Each | |||
360 Brass | |||||||||||||||||
| 3/4"-5 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.2" | 1"-18 | 1/2" | Acme Class 2C | Brinell 141 | 50,000 psi | 2,800 lb. | — | 95072A173 | 000000 | ||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.166" | 1"-18 | 1/2" | Acme Class 2C | Brinell 141 | 50,000 psi | 2,800 lb. | — | 95072A174 | 00000 | ||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.125" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | 2,800 lb. | — | 95072A351 | 00000 | ||
| 3/4"-10 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 1"-18 | 1/2" | Acme Class 2C | Brinell 141 | 50,000 psi | 2,800 lb. | — | 95072A175 | 00000 | ||
| 3/4"-16 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.063" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | 2,800 lb. | — | 95072A371 | 00000 | ||
673 Bronze | |||||||||||||||||
| 3/4"-5 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.2" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A112 | 00000 | ||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.167" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A113 | 00000 | ||
| 3/4"-10 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A131 | 00000 | ||
Acetal | |||||||||||||||||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.125" | 1"-18 | 1/2" | Acme Class 2C | Rockwell R120 | 8,000 psi | 1,400 lb. | -40 to 190 | 90493A110 | 00000 | ||
| 3/4"-16 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.063" | 1"-18 | 1/2" | Acme Class 2C | Rockwell R120 | 8,000 psi | 1,400 lb. | -40 to 190 | 90493A120 | 00000 | ||
PET | |||||||||||||||||
| 3/4"-5 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.2" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | Not Rated | 1,450 lb. | 15 to 175 | 95075A112 | 00000 | ||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.167" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | Not Rated | 1,450 lb. | 15 to 175 | 95075A113 | 00000 | ||
| 3/4"-10 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | Not Rated | 1,450 lb. | 15 to 175 | 95075A114 | 00000 | ||
PEEK | |||||||||||||||||
| 3/4"-5 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.2" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | 16,000 psi | 1,400 lb. | -40 to 525 | 90493A170 | 000000 | ||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.166" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | 16,000 psi | 1,400 lb. | -40 to 525 | 90493A180 | 000000 | ||
| 3/4"-10 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | 16,000 psi | 1,400 lb. | -40 to 525 | 90493A190 | 000000 | ||
Externally Threaded Nuts—Left-Hand Thread
|
Combine externally threaded nuts with a flange to create a custom flange nut.
360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.
673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
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.
External Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Each | |||
360 Brass | ||||||||||||||||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.125" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | 2,800 lb. | 95072A352 | 000000 | ||
| 3/4"-16 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.063" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | 2,800 lb. | 95072A372 | 00000 | ||
673 Bronze | ||||||||||||||||
| 3/4"-5 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.2" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | 95072A212 | 00000 | ||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.167" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | 95072A213 | 00000 | ||
| 3/4"-10 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | 95072A231 | 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, and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
 |
Manganese Bronze—Manganese bronze nuts have good strength and wear resistance.
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.
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Specs. Met | Each | |||
Manganese Bronze | |||||||||||||||||
| M20 × 4 mm | 1 1/4" | 1.125" | Metric Trapezoidal | 1:1 | 1 | 4 | 1"-18 | 1/2" | Metric Trapezoidal Class 7H | Brinell 126 | 75,000 | 3,100 | DIN 103 | 7549K92 | 000000 | ||
Flange Nuts—Right-Hand Thread
 |  |
Manganese Bronze—Manganese bronze nuts have good strength and wear resistance.
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.
Flange | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Dia. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Specs. Met | Each | |||
Manganese Bronze | |||||||||||||||||||
| M20 × 4 mm | 1 1/4" | 1.125" | 2 39/64" | 17/32" | Metric Trapezoidal | 1:1 | 2 3/32" | 1 | 4 | Metric Trapezoidal Class 7H | Brinell 126 | Not Rated | 3,100 | 4 | DIN 103 | 7549K22 | 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.
Externally Threaded Nuts—Right-Hand Thread
 |
Combine externally threaded nuts with a flange to create a custom flange nut.
360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.
673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
PET—PET plastic nuts are lightweight and corrosion resistant.
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.
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Temp., ° F | Each | |||
360 Brass | |||||||||||||||||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 2:1 | 2 | 0.25" | 1"-18 | 1/2" | Acme Class 2C | Brinell 130 | Not Rated | 2,800 lb. | — | 95072A331 | 000000 | ||
673 Bronze | |||||||||||||||||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 2:1 | 2 | 0.333" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A601 | 00000 | ||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 4:1 | 4 | 0.5" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A540 | 00000 | ||
PET | |||||||||||||||||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 4:1 | 4 | 0.5" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | Not Rated | 1,450 lb. | 15 to 175 | 95075A230 | 00000 | ||
Externally Threaded Nuts—Left-Hand Thread
|
Combine externally threaded nuts with a flange to create a custom flange nut.
360 Brass—360 brass nuts have excellent machinability and good corrosion resistance.
673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
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.
External Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap. | Each | |||
360 Brass | ||||||||||||||||
| 3/4"-8 | 1 1/4" | 1.125" | Acme | 2:1 | 2 | 0.25" | 1"-18 | 1/2" | Acme Class 2C | Brinell 130 | Not Rated | 2,800 lb. | 95072A332 | 000000 | ||
673 Bronze | ||||||||||||||||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 2:1 | 2 | 0.333" | 1"-18 | 1/2" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | 95072A602 | 00000 | ||
