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System of Measurement System of Measurement |
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Thread Size Thread Size |
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Thread Type Thread Type |
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Component Component |
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 | Lead Screw |
Thread Direction Thread Direction |
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Threading Threading |
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 | Fully Threaded |
Fastener Strength Grade/Class Fastener StrengthGrade/Class | Show |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class | Hide |
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Tensile Strength Tensile Strength |
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Hardness Hardness |
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Thread Fit Thread Fit |
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Number of Thread Starts Number of Thread Starts |
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Speed Ratio Speed Ratio |
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Specifications Met Specifications Met |
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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 and size.
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 | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1/4"-16 | 3 ft. | 1 | 1:1 | 0.063" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/4"-16 | 6 ft. | 1 | 1:1 | 0.063" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-8 | 12" | 1 | 1:1 | 0.125" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-8 | 3 ft. | 1 | 1:1 | 0.125" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-8 | 6 ft. | 1 | 1:1 | 0.125" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/8"-12 | 12" | 1 | 1:1 | 0.083" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-12 | 3 ft. | 1 | 1:1 | 0.083" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/8"-12 | 6 ft. | 1 | 1:1 | 0.083" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/2"-10 | 12" | 1 | 1:1 | 0.1" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/2"-10 | 3 ft. | 1 | 1:1 | 0.1" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1/2"-10 | 6 ft. | 1 | 1:1 | 0.1" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 5/8"-8 | 12" | 1 | 1:1 | 0.125" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 5/8"-8 | 3 ft. | 1 | 1:1 | 0.125" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 5/8"-8 | 6 ft. | 1 | 1:1 | 0.125" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-5 | 12" | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/4"-5 | 3 ft. | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-5 | 6 ft. | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-6 | 12" | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 3/4"-6 | 3 ft. | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 3/4"-6 | 6 ft. | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 7/8"-6 | 12" | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 7/8"-6 | 3 ft. | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 7/8"-6 | 6 ft. | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-4 | 12" | 1 | 1:1 | 0.25" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1"-4 | 3 ft. | 1 | 1:1 | 0.25" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-4 | 6 ft. | 1 | 1:1 | 0.25" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-5 | 12" | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1"-5 | 3 ft. | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-5 | 6 ft. | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-6 | 12" | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 00000 |
| 1"-6 | 3 ft. | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-6 | 6 ft. | 1 | 1:1 | 0.167" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-10 | 12" | 1 | 1:1 | 0.1" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-10 | 3 ft. | 1 | 1:1 | 0.1" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1"-10 | 6 ft. | 1 | 1:1 | 0.1" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/4"-5 | 12" | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/4"-5 | 3 ft. | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/4"-5 | 6 ft. | 1 | 1:1 | 0.2" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/2"-4 | 12" | 1 | 1:1 | 0.25" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/2"-4 | 3 ft. | 1 | 1:1 | 0.25" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |
| 1 1/2"-4 | 6 ft. | 1 | 1:1 | 0.25" | Class 2G | Grade B8M | Rockwell B97 | 75,000 | ASTM A193 | 000000000 | 000000 |