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Acme Lead Screws and Nuts
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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, thread size, and number of thread starts.
Hex Nuts—Left-Hand Thread
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Hex nuts fasten and position lead screw components.
Carbon Steel—Carbon steel components are easier to machine than alloy steel components.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | ||||||||||||||
| 1 1/4"-4 | Acme | 1 7/32" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A118 | 000000 | ||
| 1 1/4"-5 | Acme | 1 7/32" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A112 | 00000 | ||
| 2"-4 | Acme | 2" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A114 | 00000 | ||
