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System of Measurement
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Threading
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Dynamic Thrust Load Capacity
Hardness
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DFARS Specialty Metals
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Tensile Strength
Self-Reversing Lead Screws and Nuts
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A crisscross thread pattern allows you to drive the nut back and forth without changing the lead screw's direction of rotation. When the nut reaches one end of the lead screw, it changes direction and travels back to the other end. Also known as diamond lead screws, they're sometimes used to guide cable and wire as it's spooled on a reel.
Right-Hand and Left-Hand Thread
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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.
Lead Screw | Square Nut | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Screw Dia. | Thread Type | Lg. | Travel Lg. | Hardness | Overall Ht. | Canter Ht. | Hardness | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1144 Carbon Steel Lead Screws with Aluminum Square Nuts | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.75" | Diamond | 16 7/8" | 5 13/16" | Rockwell C27 | 1 7/8" | 11/16" | Brinell 60 | 1 | 0.75" | ±0.007"/1" | 130,000 | 100 | -50 to 350 | 000000000 | 000000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.75" | Diamond | 19 7/8" | 8 13/16" | Rockwell C27 | 1 7/8" | 11/16" | Brinell 60 | 1 | 0.75" | ±0.007"/1" | 130,000 | 100 | -50 to 350 | 000000000 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1" | Diamond | 23 1/2" | 11 3/4" | Rockwell C27 | 2 3/8" | 7/8" | Brinell 60 | 1 | 1" | ±0.005"/1 ft. | 130,000 | 150 | -50 to 350 | 000000000 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1" | Diamond | 29 1/2" | 17 3/4" | Rockwell C27 | 2 3/8" | 7/8" | Brinell 60 | 1 | 1" | ±0.005"/1 ft. | 130,000 | 150 | -50 to 350 | 000000000 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
