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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.
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 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
|
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
 |
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 | ||
