Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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System of Measurement System of Measurement |
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Component Component |
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![]() | Ball Nut |
![]() | Ball Screw |
Threading Threading |
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![]() | Fully Threaded |
Thread Direction Thread Direction |
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Material Material |
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Travel Distance per Turn Travel Distance per Turn |
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Nut Type Nut Type |
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Externally Threaded | Flange |
Minimum Temperature Minimum Temperature |
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Number of Thread Starts Number of Thread Starts |
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Maximum Temperature Maximum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Hardness Hardness |
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Finish Finish |
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Thread Type Thread Type |
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Pin Diameter Pin Diameter |
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Thread Fabrication Thread Fabrication |
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Tensile Strength Tensile Strength |
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Diameter Diameter |
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Dynamic Thrust Load Capacity Dynamic ThrustLoad Capacity |
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Maximum Backlash Maximum Backlash |
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Selecting Compatible Lead Screws and Nuts
More
Self-Stopping Ball Screws and Nuts

Keep your ball screw spinning without the ball nut damaging your system—a clutch-like collar inside the ball nut prevents it from travelling past the stop pins. Install the included stop pins anywhere along the length of the ball screw by drilling a hole in the valley of the threads (also known as the root) and pressing in the stop pin. When the collar meets the stop pin, the ball nut disengages from the threads and begins to idle. To start the ball nut travelling again, spin the ball screw in the opposite direction. All components are black-oxide steel and have mild corrosion resistance. To ensure compatibility, select components that have the same thread size. 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., ft. | No. of Thread Starts | Travel Distance per Turn | Root Dia. | Hardness | Tensile Strength, psi | Temperature Range, °F | No. of Pins Included | Each | |
Black-Oxide Alloy Steel | ||||||||||
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1"-2 | 2 | 2 | 0.2" | 0.84" | Rockwell C56 | 95,000 | -65° to 300° | 2 | 0000000 | 0000000 |
1"-2 | 3 | 2 | 0.2" | 0.84" | Rockwell C56 | 95,000 | -65° to 300° | 2 | 0000000 | 000000 |
1"-2 | 4 | 2 | 0.2" | 0.84" | Rockwell C56 | 95,000 | -65° to 300° | 2 | 0000000 | 000000 |

Thread Size | Lg. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | |
Black-Oxide Alloy Steel | |||||||||||
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1"-2 | 2 23/32" | 1 5/8" | 2 | 0.2" | 1.563"-18 | Rockwell C56 | 900 | 0.008" | -65° to 300° | 0000000 | 0000000 |


Flange | |||||||||||||
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Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Travel Distance per Turn | Bolt Circle Dia. | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | |
Black-Oxide Alloy Steel | |||||||||||||
1"-2 | 2 23/32" | 1 5/8" | 3 15/64" | 5/8" | 2 | 0.2" | 2 3/4" | Rockwell C56 | 900 | 0.008" | -65° to 300° | 0000000 | 0000000 |