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Selecting Compatible Lead Screws and Nuts
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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.
316 stainless steel components have excellent corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Lead Screws—Right-Hand Threaded
| Thread Size  | Lg. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Specifications Met | Each | |
316 Stainless Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4"-16 | 12" | 1 | 1:1 | 0.063" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1/4"-16 | 3 ft. | 1 | 1:1 | 0.063" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/4"-16 | 6 ft. | 1 | 1:1 | 0.063" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-8 | 12" | 1 | 1:1 | 0.125" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-8 | 3 ft. | 1 | 1:1 | 0.125" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-8 | 6 ft. | 1 | 1:1 | 0.125" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-12 | 12" | 1 | 1:1 | 0.083" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-12 | 3 ft. | 1 | 1:1 | 0.083" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-12 | 6 ft. | 1 | 1:1 | 0.083" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1/2"-10 | 12" | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/2"-10 | 3 ft. | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/2"-10 | 6 ft. | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 5/8"-8 | 12" | 1 | 1:1 | 0.125" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 5/8"-8 | 3 ft. | 1 | 1:1 | 0.125" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 5/8"-8 | 6 ft. | 1 | 1:1 | 0.125" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-5 | 12" | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/4"-5 | 3 ft. | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-5 | 6 ft. | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-6 | 12" | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/4"-6 | 3 ft. | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-6 | 6 ft. | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 7/8"-6 | 12" | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 7/8"-6 | 3 ft. | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 7/8"-6 | 6 ft. | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-4 | 12" | 1 | 1:1 | 0.25" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1"-4 | 3 ft. | 1 | 1:1 | 0.25" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-4 | 6 ft. | 1 | 1:1 | 0.25" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-5 | 12" | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1"-5 | 3 ft. | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-5 | 6 ft. | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-6 | 12" | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1"-6 | 3 ft. | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-6 | 6 ft. | 1 | 1:1 | 0.167" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-10 | 12" | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-10 | 3 ft. | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-10 | 6 ft. | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/4"-5 | 12" | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/4"-5 | 3 ft. | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/4"-5 | 6 ft. | 1 | 1:1 | 0.2" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/2"-4 | 12" | 1 | 1:1 | 0.25" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/2"-4 | 3 ft. | 1 | 1:1 | 0.25" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/2"-4 | 6 ft. | 1 | 1:1 | 0.25" | Class 2G | ASTM Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |