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Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
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Style A | Style B | Style E | Style F |
Round Nuts—Right-Hand Thread
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Style A |
Acetal—Acetal nuts have good wear and 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.
Style | Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap. | Temp., ° F | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Acetal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | M8 × 2.5 mm | 15/32" | 0.709" | Metric Rounded Trapezoidal | 4:1 | 4 | 10 | Durometer 74D | 10,000 | Not Rated | -40 to 185 | 2391N17 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Externally Threaded Nuts—Right-Hand Thread
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Style B |
Acetal—Acetal nuts have good wear and 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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Style | Thread Size | Lg. | Dia. | Hex Wd. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Acetal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| B | M8 × 2 mm | 1" | 0.548" | 11/16" | Metric Rounded Trapezoidal | 2:1 | 2 | 4 | 5/8"-18 | 1/4" | Not Rated | 8,000 | 75 | -40 to 185 | 97783A230 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Flange Nuts—Right-Hand Thread
| |
Style E | Style F |
 |
Style E |
 |
Style F |
Acetal—Acetal nuts have good wear and 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.
Flange | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Dia. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Temp., ° F | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Acetal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| E | M8 × 2 mm | 3/4" | 0.548" | 1 1/8" | 3/16" | Metric Rounded Trapezoidal | 2:1 | 7/8" | 2 | 4 | Not Rated | 8,000 | 75 | 3 | -40 to 185 | 97783A270 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| F | M8 × 2.5 mm | 25/32" | 0.787" | 1 27/64" | 5/16" | Metric Rounded Trapezoidal | 4:1 | 1 7/64" | 4 | 10 | Durometer 74D | 10,000 | Not Rated | 6 | -40 to 185 | 2391N11 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Metric Ultra-Precision Lead Screws and Nuts
 |  |  |
Style A | Style D |
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 size, thread type, thread size, thread pitch, and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
|
Style A |
Acetal—Acetal nuts have good wear and 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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Hex Wd. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Acetal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | M8 × 1.5 mm | 1" | 0.548" | 11/16" | Metric Rounded Trapezoidal | 1:1 | 1 | 1.5 | 5/8"-18 | 1/4" | Not Rated | 8,000 | 75 | -40 to 185 | 7549K61 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Flange Nuts—Right-Hand Thread
| |
Style D | Style D |
Acetal—Acetal nuts have good wear and 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.
Flange | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Dia. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Temp., ° F | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Acetal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| D | M8 × 1.5 mm | 3/4" | 0.548" | 1 1/8" | 3/16" | Metric Rounded Trapezoidal | 1:1 | 7/8" | 1 | 1.5 | Not Rated | 8,000 | 75 | 3 | -40 to 185 | 7549K64 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
