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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.
Square Nuts—Right-Hand Thread
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Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.
360 Brass—360 brass components have excellent machinability and 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 | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
360 Brass | ||||||||||||||
| 3/8"-12 | Acme | 3/8" | 3/4" | 1 | 1:1 | 0.083" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A111 | 00000 | ||
| 1/2"-10 | Acme | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A114 | 00000 | ||
| 5/8"-8 | Acme | 5/8" | 1" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A119 | 00000 | ||
| 3/4"-5 | Acme | 3/4" | 1 1/4" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A123 | 00000 | ||
| 3/4"-6 | Acme | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A127 | 00000 | ||
| 7/8"-6 | Acme | 7/8" | 1 1/2" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A143 | 00000 | ||
| 1"-5 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A147 | 00000 | ||
| 1"-6 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A151 | 00000 | ||
| 1"-10 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A155 | 00000 | ||
| 1 1/8"-5 | Acme | 1 1/8" | 1 3/4" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A159 | 00000 | ||
| 1 1/4"-5 | Acme | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A163 | 00000 | ||
| 1 1/2"-4 | Acme | 1 1/2" | 2 1/4" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A167 | 00000 | ||
| 2"-4 | Acme | 2" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A171 | 000000 | ||
Square Nuts—Left-Hand Thread
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Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.
360 Brass—360 brass components have excellent machinability and 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 | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
360 Brass | ||||||||||||||
| 3/8"-12 | Acme | 3/8" | 3/4" | 1 | 1:1 | 0.083" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A511 | 00000 | ||
| 1/2"-10 | Acme | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A514 | 00000 | ||
| 5/8"-8 | Acme | 5/8" | 1" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A519 | 00000 | ||
| 3/4"-5 | Acme | 3/4" | 1 1/4" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A523 | 00000 | ||
| 3/4"-6 | Acme | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A527 | 00000 | ||
| 7/8"-6 | Acme | 7/8" | 1 1/2" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A543 | 00000 | ||
| 1"-5 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A547 | 00000 | ||
| 1"-6 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A551 | 00000 | ||
| 1"-10 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A555 | 00000 | ||
| 1 1/4"-5 | Acme | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A563 | 00000 | ||
| 1 1/2"-4 | Acme | 1 1/2" | 2 1/4" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B55 | Not Rated | ASTM B16 | 95270A567 | 00000 | ||
Metric 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, size, and number of thread starts. Class 7e and 7H components are compatible.
Square Nuts—Right-Hand Thread
|
Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.
360 Brass—360 brass components have excellent machinability and good corrosion resistance.
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.
Thread Size | Thread Type | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
360 Brass | |||||||||||||
| M10 × 2 mm | Metric Trapezoidal | 20 | 19 | 1 | 1:1 | 2 | Metric Trapezoidal Class 7H | Not Rated | Not Rated | 94353A311 | 000000 | ||
| M12 × 3 mm | Metric Trapezoidal | 25 | 25 | 1 | 1:1 | 3 | Metric Trapezoidal Class 7H | Not Rated | Not Rated | 94353A312 | 00000 | ||
| M16 × 4 mm | Metric Trapezoidal | 35 | 28 | 1 | 1:1 | 4 | Metric Trapezoidal Class 7H | Not Rated | Not Rated | 94353A313 | 00000 | ||
| M20 × 4 mm | Metric Trapezoidal | 50 | 38 | 1 | 1:1 | 4 | Metric Trapezoidal Class 7H | Not Rated | Not Rated | 94353A314 | 000000 | ||
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 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 97825A110 | 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 | 97825A120 | 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 | 97825A130 | 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 | 97825A140 | 00000000 | ||
