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 | White |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Nuts, Materials, and Finishes
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Selecting Compatible Lead Screws and Nuts
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Water-Resistant Acetal Hex Nuts
For use in wet environments, these nuts resist alcohol, gasoline, and solvents.
For technical drawings and 3-D models, click on a part number.
Metric Ultra-Precision Lead Screws and Nuts
Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. 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 type and thread size.
Nuts are acetal plastic; they have good wear and 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.
External Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size  | Thread Pitch, mm | Lg. | Dia. | Hex Wd. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||||
| A | M2 | 0.5 | 11/16" | 0.297" | 7/16" | 1 | Metric Rounded Acme | 1:1 | 0.5 | 3/8"-24 | 3/16" | 8,000 | 10 | -40° to 185° | 0000000 | 000000 |
| A | M4 | 0.3 | 11/16" | 0.297" | 7/16" | 1 | Metric Rounded Acme | 1:1 | 0.3 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 0000000 | 00000 |
| A | M8 | 1.5 | 1" | 0.548" | 11/16" | 1 | Metric Rounded Acme | 1:1 | 1.5 | 5/8"-18 | 1/4" | 8,000 | 75 | -40° to 185° | 0000000 | 00000 |
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.
Nuts are acetal plastic; they have good wear and 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.
External Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Hex Wd. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||||
| B | M2 | 0.5 | 11/16" | 0.297" | 7/16" | 2 | Metric Rounded Acme | 2:1 | 1 | 3/8"-24 | 3/16" | 8,000 | 10 | -40° to 185° | 000000000 | 000000 |
| B | M4 | 1.25 | 11/16" | 0.297" | 7/16" | 8 | Metric Rounded Acme | 8:1 | 10 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
| B | M5 | 1.25 | 11/16" | 0.297" | 7/16" | 4 | Metric Rounded Acme | 4:1 | 5 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
| B | M8 | 2 | 1" | 0.548" | 11/16" | 2 | Metric Rounded Acme | 2:1 | 4 | 5/8"-18 | 1/4" | 8,000 | 75 | -40° to 185° | 000000000 | 00000 |