System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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Thread Type Thread Type |
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Component Component |
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![]() | Lead Screw |
Threading Threading |
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![]() | Fully Threaded |
Material Material |
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Thread Direction Thread Direction |
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Thread Fit Thread Fit |
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Tensile Strength Tensile Strength |
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Specifications Met Specifications Met |
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Speed Ratio Speed Ratio |
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Number of Thread Starts Number of Thread Starts |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Selecting Compatible Lead Screws and Nuts
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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 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 | ||||||||||||
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M10 | 2 | 1,750 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
M12 | 3 | 1,750 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
M16 | 3 | 1,750 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
M20 | 4 | 1,750 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
M24 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
M28 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
M40 | 7 | 1,750 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 0000000 | 000000 |