System of Measurement System of Measurement |
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Thread Type Thread Type |
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Component Component |
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 | Ball Screw |
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Length Length | Show |
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Length Length | Hide |
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Travel Distance per Turn Travel Distance per Turn |
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Material Material |
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Threading Threading |
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Thread Direction Thread Direction |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Root Diameter Root Diameter |
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Tensile Strength Tensile Strength |
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Thread Fabrication Thread Fabrication |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Finish Finish |
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Fastener Strength Grade/Class Fastener Strength Grade/Class |
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Selecting Compatible Lead Screws and Nuts
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Metric 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, select components that have the same thread size.
Lead screws are 1018 carbon steel for good machinability.
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., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Specifications Met | Each | |
1018 Carbon Steel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 3 | 1,000 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
| M16 | 3 | 1,000 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1,000 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M28 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M40 | 7 | 1,000 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
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 type, thread size, thread pitch, and number of thread starts.
303 and 304 stainless steel lead screws have good 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., mm | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |
304 Stainless Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 2.5 | 1,000 | 2 | Metric Rounded Acme | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 0000000 |
| M16 | 5 | 1,000 | 7 | Metric Rounded Acme | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M20 | 5 | 1,000 | 4 | Metric Rounded Acme | 4:1 | 20 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M20 | 7.5 | 1,000 | 8 | Metric Rounded Acme | 8:1 | 60 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
Metric Ball Screws and Nuts
Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread size and travel distance per turn. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
For technical drawings and 3-D models, click on a part number.
Root diameter indicates the diameter the ball screw will be after machining away the threads.
| Thread Size | Lg., mm | No. of Thread Starts | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Root Dia., mm | Hardness | Tensile Strength, psi | Temperature Range, °F | Each | |
Carbon Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M14 | 1,000 | 1 | 4 | ±0.210 mm per 300 mm | 11.5 | Rockwell C58 | 21,000 | 5° to 175° | 0000000 | 0000000 |
| M14 | 1,000 | 1 | 5 | ±0.210 mm per 300 mm | 11.2 | Rockwell C58 | __ | Not Rated to 175° | 00000000 | 000000 |
| M16 | 1,000 | 1 | 5 | ±0.210 mm per 300 mm | 13.5 | Rockwell C58 | 21,000 | 5° to 175° | 000000 | 000000 |
| M20 | 1,000 | 1 | 5 | ±0.210 mm per 300 mm | 17.2 | Rockwell C58 | 21,000 | 5° to 175° | 000000 | 000000 |
| M25 | 1,000 | 1 | 5 | ±0.210 mm per 300 mm | 22.2 | Rockwell C58 | 21,000 | 5° to 175° | 0000000 | 000000 |
| M25 | 1,000 | 1 | 10 | ±0.210 mm per 300 mm | 20.2 | Rockwell C58 | __ | Not Rated to 175° | 00000000 | 000000 |
| M18 | 1,000 | 1 | 8 | ±0.210 mm per 300 mm | 14.4 | Rockwell C58 | __ | Not Rated to 175° | 00000000 | 000000 |
| M28 | 1,000 | 1 | 6 | ±0.210 mm per 300 mm | 25.2 | Rockwell C58 | __ | Not Rated to 175° | 00000000 | 000000 |
| M32 | 1,000 | 1 | 10 | ±0.210 mm per 300 mm | 27.2 | Rockwell C58 | __ | Not Rated to 175° | 00000000 | 000000 |
| M36 | 1,000 | 1 | 10 | ±0.210 mm per 300 mm | 30.5 | Rockwell C58 | __ | Not Rated to 175° | 00000000 | 000000 |
Metric Fast-Travel Ball Screws and Nuts
With multiple thread starts, these metric ball screws create linear travel that’s approximately three times faster than ball screws with a single thread start. They’re ideal for applications with an actuator. The ball nuts have internal ball bearings to produce smooth, low-friction travel for applications that require high speed, accurate positioning, and repeatable movement. They come with a tube to keep the ball bearings in place. Do not remove the tube until you’re ready to install the nuts onto the screws. All of these ball nuts have an end cap on each end to stabilize fast-rotating motion. End caps also dampen the noise from the ball bearings and make the ball nuts more compact. Seals on the ball nuts keep out dust.
To ensure compatibility, select components that have the same thread size and travel distance per turn.
Root diameter indicates the diameter the ball screw will be after machining away the threads.
Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Lg., mm | No. of Thread Starts | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Root Dia., mm | Hardness | Temp. Range, °F | Each | |
Carbon Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| M15 | 1,000 | 2 | 10 | ±0.210 mm per 300 mm | 12.5 | Rockwell C58 | Not Rated to 175° | 0000000 | 0000000 |
| M16 | 1,000 | 4 | 16 | ±0.210 mm per 300 mm | 13.7 | Rockwell C58 | Not Rated to 175° | 00000000 | 000000 |
| M20 | 1,000 | 4 | 20 | ±0.210 mm per 300 mm | 17.5 | Rockwell C58 | Not Rated to 175° | 00000000 | 000000 |
| M25 | 1,000 | 4 | 25 | ±0.210 mm per 300 mm | 21.9 | Rockwell C58 | Not Rated to 175° | 0000000 | 000000 |
| M32 | 1,000 | 4 | 32 | ±0.210 mm per 300 mm | 28.3 | Rockwell C58 | Not Rated to 175° | 00000000 | 000000 |
| M36 | 1,000 | 2 | 20 | ±0.210 mm per 300 mm | 31.2 | Rockwell C58 | Not Rated to 175° | 0000000 | 000000 |
Metric 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, size, and pitch. Class 7E and 7H components are compatible.
Black-oxide carbon steel components have mild 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., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Fastener Strength Grade/Class | Hardness | Specifications Met | Each | |
Black-Oxide Carbon Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 1,000 | 1 | 1:1 | 2 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |
| M12 | 3 | 1,000 | 1 | 1:1 | 3 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M16 | 4 | 1,000 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M20 | 4 | 1,000 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M26 | 5 | 1,000 | 1 | 1:1 | 5 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M40 | 7 | 1,000 | 1 | 1:1 | 7 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |