System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Pitch Thread Pitch |
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Thread Type Thread Type |
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Nut Type Nut Type |
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| Hex | Flange |
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| Round | Externally Threaded |
Thread Direction Thread Direction |
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Threading Threading |
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 | Fully Threaded |
Hardness Hardness |
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Travel Distance per Turn Travel Distance per Turn |
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Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
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Speed Ratio Speed Ratio |
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Number of Thread Starts Number of Thread Starts |
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Tensile Strength Tensile Strength |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Selecting Compatible Lead Screws and Nuts
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Metric 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. 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 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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M40 | 7 | 1,000 | 1 | 1:1 | 7 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 0000000 |
| M40 | 7 | 2,000 | 1 | 1:1 | 7 | 7e | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
Flange nuts move objects along the length of a lead screw. They have a wide machinable flange for custom mounting.
Flange | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Ht., mm | Dia., mm | Dia., mm | Thick., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Each | |
932 Bearing Bronze | ||||||||||||
| M40 | 7 | 66 | 63 | 98 | 16 | 1 | 1:1 | 7 | 7H | Not Rated | 000000000 | 0000000 |
Hex nuts fasten and position lead screw components.
| Thread Size | Thread Pitch, mm | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Fastener Strength Grade/Class | Hardness | Each | |
Carbon Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M40 | 7 | 39.9 | 60.33 | 1 | 1:1 | 7 | 7H | Grade 2 | Not Rated | 000000000 | 000000 |
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.
932 bearing bronze nuts have good machinability and wear resistance. Manganese bronze nuts have good strength 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., 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M40 | 7 | 1,000 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 0000000 |
| M40 | 7 | 1,750 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 0000000 | 000000 |
| 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 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M40 | 7 | 3" | 2.5" | 1 | 1:1 | 7 | 7H | Brinell 70 | Not Rated | 12,300 | DIN 103 | 0000000 | 000000 |
External Thread | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
Manganese Bronze | |||||||||||||||
| M40 | 7 | 2 19/64" | 2.125" | 1 | 1:1 | 7 | 1 31/32"-18 | 13/16" | 7H | Brinell 126 | 75,000 | 12,300 | DIN 103 | 0000000 | 0000000 |
Flange | ||||||||||||||||
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| Thread Size | Thread Pitch, mm | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Bolt Circle Dia. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
Manganese Bronze | ||||||||||||||||
| M40 | 7 | 2 19/64" | 2.125" | 4 13/64" | 53/64" | 1 | 1:1 | 7 | 3 7/16" | 7H | Brinell 126 | Not Rated | 12,300 | DIN 103 | 0000000 | 0000000 |