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About Lead Screws and Nuts
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Compare lead screws and nuts by the size, direction, fit, and starts of their threads.
Acme Lead Screws and Nuts
 |
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.
Coupling Nuts—Right-Hand Thread
 |
Coupling nuts connect two lead screws.
Carbon Steel—Carbon steel components are easier to machine than alloy steel components.
18-8 Stainless Steel—18-8 stainless steel components have good corrosion resistance.
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 | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | |||||||||||||
| 3/8"-12 | Acme | 1 7/8" | 1/2" | 1 | 1:1 | 0.083" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A661 | 000000 | ||
| 1/2"-10 | Acme | 1 1/4" | 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A673 | 00000 | ||
| 5/8"-8 | Acme | 2 1/8" | 7/8" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A662 | 00000 | ||
| 3/4"-5 | Acme | 2 1/4" | 1" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A664 | 00000 | ||
| 3/4"-6 | Acme | 2 1/4" | 1" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A663 | 00000 | ||
| 7/8"-6 | Acme | 2 1/2" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A665 | 00000 | ||
| 1"-5 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A667 | 00000 | ||
| 1"-6 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A666 | 00000 | ||
| 1"-10 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A680 | 00000 | ||
| 1 1/8"-5 | Acme | 3" | 1 1/2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A668 | 00000 | ||
| 1 1/4"-4 | Acme | 3" | 1 5/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A671 | 00000 | ||
| 1 1/4"-5 | Acme | 3" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A669 | 00000 | ||
| 1 3/8"-4 | Acme | 3 1/4" | 1 7/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A672 | 00000 | ||
| 1 1/2"-4 | Acme | 3 1/2" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A674 | 00000 | ||
| 2"-4 | Acme | 4" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A675 | 000000 | ||
| 2 1/2"-4 | Acme | 5" | 3 1/2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93023A327 | 000000 | ||
18-8 Stainless Steel | |||||||||||||
| 1/2"-10 | Acme | 1 1/4" | 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Not Rated | Not Rated | 93030A106 | 00000 | ||
| 5/8"-8 | Acme | 2 1/8" | 7/8" | 1 | 1:1 | 0.125" | Acme Class 2G | Not Rated | Not Rated | 93030A109 | 00000 | ||
| 3/4"-5 | Acme | 2 1/4" | 1" | 1 | 1:1 | 0.2" | Acme Class 2G | Not Rated | Not Rated | 93030A112 | 00000 | ||
| 3/4"-6 | Acme | 2 1/4" | 1" | 1 | 1:1 | 0.167" | Acme Class 2G | Not Rated | Not Rated | 93030A113 | 00000 | ||
| 7/8"-6 | Acme | 2 1/2" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Not Rated | Not Rated | 93030A115 | 00000 | ||
| 1"-5 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Not Rated | Not Rated | 93030A119 | 00000 | ||
| 1"-6 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.167" | Acme Class 2G | Not Rated | Not Rated | 93030A117 | 00000 | ||
| 1"-10 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Not Rated | Not Rated | 93030A118 | 00000 | ||
| 1 1/8"-5 | Acme | 3" | 1 1/2" | 1 | 1:1 | 0.2" | Acme Class 2G | Not Rated | Not Rated | 93030A122 | 000000 | ||
| 1 1/4"-4 | Acme | 3" | 1 5/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Not Rated | Not Rated | 93030A123 | 000000 | ||
| 1 1/4"-5 | Acme | 3" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Not Rated | Not Rated | 93030A124 | 000000 | ||
| 1 1/2"-4 | Acme | 3 1/2" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | Not Rated | Not Rated | 93030A127 | 000000 | ||
| 2"-4 | Acme | 4" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Not Rated | Not Rated | 93030A129 | 000000 | ||
Coupling Nuts—Left-Hand Thread
|
Coupling nuts connect two lead screws.
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 | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | |||||||||||||
| 1/2"-10 | Acme | 1 1/4" | 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A648 | 000000 | ||
| 5/8"-8 | Acme | 2 1/8" | 7/8" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A651 | 00000 | ||
| 3/4"-5 | Acme | 2 1/4" | 1" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A653 | 00000 | ||
| 3/4"-6 | Acme | 2 1/4" | 1" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A652 | 00000 | ||
| 7/8"-6 | Acme | 2 1/2" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A304 | 00000 | ||
| 1"-5 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A655 | 00000 | ||
| 1"-6 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A654 | 00000 | ||
| 1"-10 | Acme | 2 3/4" | 1 3/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A308 | 00000 | ||
| 1 1/8"-5 | Acme | 3" | 1 1/2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A656 | 00000 | ||
| 1 1/4"-4 | Acme | 3" | 1 5/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A658 | 00000 | ||
| 1 1/4"-5 | Acme | 3" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A657 | 00000 | ||
| 1 3/8"-4 | Acme | 3 1/4" | 1 7/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A313 | 00000 | ||
| 1 1/2"-4 | Acme | 3 1/2" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A659 | 000000 | ||
| 2"-4 | Acme | 4" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 93026A318 | 000000 | ||
