Thread Type Thread Type |
|---|
Nut Type Nut Type |
|---|
|
|
Length Length |
|---|
Diameter Diameter |
|---|
Material Material |
|---|
|
|
Travel Distance per Turn Travel Distance per Turn |
|---|
|
|
|
Hardness Hardness |
|---|
|
Tensile Strength Tensile Strength |
|---|
|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
|---|
Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
|---|
|
|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
|---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
|---|
|
Selecting Compatible Lead Screws and Nuts
More
About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
More
Metric Precision Lead Screws and Nuts
Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread size.
Lead screws are 1018 carbon steel for good machinability.
932 bearing bronze nuts have good machinability and wear resistance. Manganese bronze nuts have good strength and wear resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | Lg., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Specifications Met | Each | |
1018 Carbon Steel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 250 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
| M10 | 2 | 500 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M10 | 2 | 750 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M10 | 2 | 1,750 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
| M12 | 3 | 500 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M12 | 3 | 1,000 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M12 | 3 | 1,750 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
| M16 | 3 | 500 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1,000 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1,750 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
| M20 | 4 | 500 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1,000 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1,750 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
| M24 | 5 | 500 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
| M28 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M28 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
| M40 | 7 | 1,000 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
| M40 | 7 | 1,750 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 0000000 | 000000 |
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
932 Bearing Bronze | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 3/4" | 0.75" | 1 | 1:1 | 2 | 7H | Brinell 70 | Not Rated | 670 | DIN 103 | 0000000 | 000000 |
| M12 | 3 | 1" | 0.875" | 1 | 1:1 | 3 | 7H | Brinell 70 | Not Rated | 1,100 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1 1/8" | 1.125" | 1 | 1:1 | 3 | 7H | Brinell 70 | Not Rated | 2,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1 1/2" | 1.25" | 1 | 1:1 | 4 | 7H | Brinell 70 | Not Rated | 3,100 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | 7H | Brinell 70 | Not Rated | 4,500 | DIN 103 | 0000000 | 00000 |
| M28 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | 7H | Brinell 69 | 44,000 | 6,100 | DIN 103 | 0000000 | 00000 |
| M40 | 7 | 3" | 2.5" | 1 | 1:1 | 7 | 7H | Brinell 70 | Not Rated | 12,300 | DIN 103 | 0000000 | 00000 |
External Thread | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
Manganese Bronze | |||||||||||||||
| M10 | 2 | 5/8" | 0.68" | 1 | 1:1 | 2 | 9/16"-18 | 3/8" | 7H | Brinell 126 | 75,000 | 670 | DIN 103 | 0000000 | 000000 |
| M12 | 3 | 3/4" | 1.125" | 1 | 1:1 | 3 | 15/16"-16 | 1/2" | 7H | Brinell 126 | 75,000 | 1,100 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1" | 1.125" | 1 | 1:1 | 3 | 15/16"-16 | 1/2" | 7H | Brinell 126 | 75,000 | 2,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1 1/4" | 1.125" | 1 | 1:1 | 4 | 1"-18 | 1/2" | 7H | Brinell 126 | 75,000 | 3,100 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 1 1/2" | 1.5" | 1 | 1:1 | 5 | 1 3/8"-16 | 1/2" | 7H | Brinell 126 | 75,000 | 4,500 | DIN 103 | 0000000 | 000000 |
| M28 | 5 | 1 3/4" | 2.125" | 1 | 1:1 | 5 | 1 31/32"-18 | 13/16" | 7H | Brinell 126 | 75,000 | 6,100 | DIN 103 | 0000000 | 000000 |
| M40 | 7 | 2 19/64" | 2.125" | 1 | 1:1 | 7 | 1 31/32"-18 | 13/16" | 7H | Brinell 126 | 75,000 | 12,300 | DIN 103 | 0000000 | 000000 |
Flange | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Bolt Circle Dia. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
Manganese Bronze | ||||||||||||||||
| M10 | 2 | 5/8" | 0.688" | 1 39/64" | 13/32" | 1 | 1:1 | 2 | 1 1/8" | 7H | Brinell 126 | Not Rated | 670 | DIN 103 | 0000000 | 000000 |
| M12 | 3 | 3/4" | 1.125" | 2 39/64" | 17/32" | 1 | 1:1 | 3 | 2 3/32" | 7H | Brinell 126 | Not Rated | 1,100 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1" | 1.125" | 2 39/64" | 17/32" | 1 | 1:1 | 3 | 2 3/32" | 7H | Brinell 126 | Not Rated | 2,000 | DIN 103 | 0000000 | 00000 |
| M20 | 4 | 1 1/4" | 1.125" | 2 39/64" | 17/32" | 1 | 1:1 | 4 | 2 3/32" | 7H | Brinell 126 | Not Rated | 3,100 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 1 1/2" | 1.5" | 2 3/4" | 33/64" | 1 | 1:1 | 5 | 2 17/64" | 7H | Brinell 126 | Not Rated | 4,500 | DIN 103 | 0000000 | 00000 |
| M28 | 5 | 1 3/4" | 2.125" | 4 13/64" | 53/64" | 1 | 1:1 | 5 | 3 7/16" | 7H | Brinell 126 | 75,000 | 6,100 | DIN 103 | 0000000 | 000000 |
| M40 | 7 | 2 19/64" | 2.125" | 4 13/64" | 53/64" | 1 | 1:1 | 7 | 3 7/16" | 7H | Brinell 126 | Not Rated | 12,300 | DIN 103 | 0000000 | 000000 |
Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread type, thread size, thread pitch, and number of thread starts.
Nuts are acetal plastic; they have good wear and corrosion resistance.
Alloy steel lead screws are hard and strong. 303 and 304 stainless steel lead screws have good corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | Lg., mm | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |
4140 Alloy Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 1.25 | 100 | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | ±0.089 mm per 300 mm | Brinell 200 | 90,000 | 000000000 | 000000 |
| M5 | 1.25 | 175 | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 000000000 | 00000 |
| M8 | 2 | 200 | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 000000000 | 00000 |
| M8 | 2 | 300 | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 000000000 | 00000 |
303 Stainless Steel | |||||||||||
| M2 | 0.5 | 50 | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
| M2 | 0.5 | 100 | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
| M4 | 1.25 | 75 | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
| M4 | 1.25 | 150 | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 000000000 | 00000 |
304 Stainless Steel | |||||||||||
| M8 | 2.5 | 250 | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M8 | 2.5 | 500 | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M10 | 3 | 250 | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M10 | 3 | 500 | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M12 | 2.5 | 250 | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M12 | 2.5 | 500 | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M12 | 2.5 | 1,000 | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M16 | 5 | 250 | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 00000 |
| M16 | 5 | 500 | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M16 | 5 | 1,000 | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M20 | 5 | 500 | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M20 | 5 | 1,000 | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M20 | 7.5 | 500 | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| M20 | 7.5 | 1,000 | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | ±0.1 mm per 300 mm | Brinell 160 | 72,000 | 0000000 | 000000 |
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | M8 | 2.5 | 15/32" | 0.709" | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 000000 |
| A | M10 | 3 | 25/32" | 0.866" | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| A | M12 | 2.5 | 15/16" | 1.024" | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| A | M16 | 5 | 1 17/64" | 1.417" | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| A | M20 | 5 | 1 37/64" | 1.772" | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| A | M20 | 7.5 | 1 37/64" | 1.772" | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | Durometer 74D | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
External Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Hex Wd. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||||
| B | M2 | 0.5 | 11/16" | 0.297" | 7/16" | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | 3/8"-24 | 3/16" | 8,000 | 10 | -40° to 185° | 000000000 | 000000 |
| B | M4 | 1.25 | 11/16" | 0.297" | 7/16" | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
| B | M5 | 1.25 | 11/16" | 0.297" | 7/16" | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
| B | M8 | 2 | 1" | 0.548" | 11/16" | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | 5/8"-18 | 1/4" | 8,000 | 75 | -40° to 185° | 000000000 | 00000 |
Flange | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Dia. | Wd. | Ht. | Thick. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Mounting Hole Ctr.-to-Ctr. | Bolt Circle Dia. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temp. Range, °F | Each | ||
Acetal Plastic | |||||||||||||||||||
| C | M2 | 0.5 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 2 | Metric Rounded Trapezoidal | 2:1 | 1 | 39/64" | __ | 8,000 | 10 | -40° to 185° | 000000000 | 000000 |
| C | M4 | 1.25 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 8 | Metric Rounded Trapezoidal | 8:1 | 10 | 39/64" | __ | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
| C | M5 | 1.25 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 4 | Metric Rounded Trapezoidal | 4:1 | 5 | 39/64" | __ | 8,000 | 25 | -40° to 185° | 000000000 | 00000 |
| D | M8 | 2 | 3/4" | 0.548" | 1 1/8" | __ | __ | 3/16" | 2 | Metric Rounded Trapezoidal | 2:1 | 4 | __ | 7/8" | 8,000 | 75 | -40° to 185° | 000000000 | 00000 |
| E | M8 | 2.5 | 25/32" | 0.787" | 1 27/64" | __ | __ | 5/16" | 4 | Metric Rounded Trapezoidal | 4:1 | 10 | __ | 1 7/64" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| E | M10 | 3 | 63/64" | 0.984" | 1 21/32" | __ | __ | 25/64" | 4 | Metric Rounded Trapezoidal | 4:1 | 12 | __ | 1 11/32" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| E | M12 | 2.5 | 1 3/8" | 1.102" | 1 57/64" | __ | __ | 15/32" | 2 | Metric Rounded Trapezoidal | 2:1 | 5 | __ | 1 1/2" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| E | M16 | 5 | 1 3/8" | 1.102" | 1 57/64" | __ | __ | 15/32" | 7 | Metric Rounded Trapezoidal | 7:1 | 35 | __ | 1 1/2" | 10,000 | Not Rated | -40° to 185° | 0000000 | 00000 |
| E | M20 | 5 | 1 47/64" | 1.26" | 2 11/64" | __ | __ | 15/32" | 4 | Metric Rounded Trapezoidal | 4:1 | 20 | __ | 1 49/64" | 10,000 | Not Rated | -40° to 185° | 0000000 | 000000 |
| E | M20 | 7.5 | 1 47/64" | 1.26" | 2 11/64" | __ | __ | 15/32" | 8 | Metric Rounded Trapezoidal | 8:1 | 60 | __ | 1 49/64" | 10,000 | Not Rated | -40° to 185° | 0000000 | 000000 |
Metric Ultra-Precision Lead Screws and Nuts
Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread type and thread size.
Nuts are acetal plastic; they have good wear and corrosion resistance.
Alloy steel lead screws are hard and strong. 303 stainless steel lead screws have good corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | Lg., mm | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |
4140 Alloy Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M8 | 1.5 | 100 | 1 | Metric Rounded Trapezoidal | 1:1 | 1.5 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 0000000 | 000000 |
| M8 | 1.5 | 200 | 1 | Metric Rounded Trapezoidal | 1:1 | 1.5 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 0000000 | 00000 |
| M8 | 1.5 | 300 | 1 | Metric Rounded Trapezoidal | 1:1 | 1.5 | ±0.089 mm per 300 mm | Brinell 200 | 125,000 | 0000000 | 00000 |
303 Stainless Steel | |||||||||||
| M2 | 0.5 | 50 | 1 | Metric Rounded Trapezoidal | 1:1 | 0.5 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 0000000 | 00000 |
| M2 | 0.5 | 100 | 1 | Metric Rounded Trapezoidal | 1:1 | 0.5 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 0000000 | 00000 |
| M4 | 0.3 | 75 | 1 | Metric Rounded Trapezoidal | 1:1 | 0.3 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 0000000 | 00000 |
| M4 | 0.3 | 150 | 1 | Metric Rounded Trapezoidal | 1:1 | 0.3 | ±0.089 mm per 300 mm | Brinell 160 | 90,000 | 0000000 | 00000 |
External Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Hex Wd. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | ||
Acetal Plastic | ||||||||||||||||
| A | M2 | 0.5 | 11/16" | 0.297" | 7/16" | 1 | Metric Rounded Trapezoidal | 1:1 | 0.5 | 3/8"-24 | 3/16" | 8,000 | 10 | -40° to 185° | 0000000 | 000000 |
| A | M4 | 0.3 | 11/16" | 0.297" | 7/16" | 1 | Metric Rounded Trapezoidal | 1:1 | 0.3 | 3/8"-24 | 3/16" | 8,000 | 25 | -40° to 185° | 0000000 | 00000 |
| A | M8 | 1.5 | 1" | 0.548" | 11/16" | 1 | Metric Rounded Trapezoidal | 1:1 | 1.5 | 5/8"-18 | 1/4" | 8,000 | 75 | -40° to 185° | 0000000 | 00000 |
Flange | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Dia. | Wd. | Ht. | Thick. | No. of Thread Starts | Thread Type | Speed Ratio | Travel Distance per Turn, mm | Mounting Hole Ctr.-to-Ctr. | Bolt Circle Dia. | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | ||
Acetal Plastic | |||||||||||||||||||
| B | M2 | 0.5 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 1 | Metric Rounded Trapezoidal | 1:1 | 0.5 | 39/64" | __ | 8,000 | 10 | -40° to 185° | 0000000 | 000000 |
| B | M4 | 0.3 | 1/2" | 0.297" | __ | 3/4" | 13/32" | 1/8" | 1 | Metric Rounded Trapezoidal | 1:1 | 0.3 | 39/64" | __ | 8,000 | 25 | -40° to 185° | 0000000 | 00000 |
| C | M8 | 1.5 | 3/4" | 0.548" | 1 1/8" | __ | __ | 3/16" | 1 | Metric Rounded Trapezoidal | 1:1 | 1.5 | __ | 7/8" | 8,000 | 75 | -40° to 185° | 0000000 | 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 pitch. Class 7e and 7H components are compatible.
Black-oxide carbon steel components have mild corrosion resistance. 932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair corrosion resistance. 360 brass components have excellent machinability and good corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | Lg., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Fastener Strength Grade/Class | Hardness | Specifications Met | Each | |
Black-Oxide Carbon Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 500 | 1 | 1:1 | 2 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |
| M10 | 2 | 1,000 | 1 | 1:1 | 2 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M12 | 3 | 500 | 1 | 1:1 | 3 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M12 | 3 | 1,000 | 1 | 1:1 | 3 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M12 | 3 | 2,000 | 1 | 1:1 | 3 | 7e | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
| M16 | 4 | 500 | 1 | 1:1 | 4 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M16 | 4 | 1,000 | 1 | 1:1 | 4 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M16 | 4 | 2,000 | 1 | 1:1 | 4 | 7e | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
| M20 | 4 | 1,000 | 1 | 1:1 | 4 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |
| M20 | 4 | 2,000 | 1 | 1:1 | 4 | 7e | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
| M26 | 5 | 1,000 | 1 | 1:1 | 5 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
| M26 | 5 | 2,000 | 1 | 1:1 | 5 | 7e | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
| M40 | 7 | 1,000 | 1 | 1:1 | 7 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |
| M40 | 7 | 2,000 | 1 | 1:1 | 7 | 7e | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
Flange nuts move objects along the length of a lead screw. They have a wide machinable flange for custom mounting.
Flange | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Ht., mm | Dia., mm | Dia., mm | Thick., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Each | |
932 Bearing Bronze | ||||||||||||
| M10 | 2 | 35 | 28 | 48 | 12 | 1 | 1:1 | 2 | 7H | Not Rated | 000000000 | 0000000 |
| M12 | 3 | 35 | 28 | 48 | 12 | 1 | 1:1 | 3 | 7H | Not Rated | 000000000 | 00000 |
| M16 | 4 | 35 | 28 | 48 | 12 | 1 | 1:1 | 4 | 7H | Not Rated | 000000000 | 00000 |
| M20 | 4 | 44 | 32 | 55 | 12 | 1 | 1:1 | 4 | 7H | Not Rated | 000000000 | 000000 |
| M26 | 5 | 46 | 38 | 62 | 14 | 1 | 1:1 | 5 | 7H | Not Rated | 000000000 | 000000 |
| M40 | 7 | 66 | 63 | 98 | 16 | 1 | 1:1 | 7 | 7H | Not Rated | 000000000 | 000000 |
Hex nuts fasten and position lead screw components.
| Thread Size | Thread Pitch, mm | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Fastener Strength Grade/Class | Hardness | Each | |
Carbon Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 3 | 12 | 22.2 | 1 | 1:1 | 3 | 7H | Grade 2 | Not Rated | 000000000 | 000000 |
| M16 | 4 | 16 | 27 | 1 | 1:1 | 4 | 7H | Grade 2 | Not Rated | 000000000 | 00000 |
| M20 | 4 | 20 | 31.75 | 1 | 1:1 | 4 | 7H | Grade 2 | Not Rated | 000000000 | 00000 |
| M26 | 5 | 25.4 | 41.3 | 1 | 1:1 | 5 | 7H | Grade 2 | Not Rated | 000000000 | 00000 |
| M40 | 7 | 39.9 | 60.33 | 1 | 1:1 | 7 | 7H | Grade 2 | Not Rated | 000000000 | 00000 |
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.
Metric Clamping Lead Screw Collars
Thread these one-piece collars onto a metric lead screw to separate and position components, or use them as an end stop to limit travel. Made of black-oxide steel, they have mild corrosion resistance. Tighten the clamping screws to secure.
To ensure compatibility, please select a collar that has the same thread type, direction, size, and pitch as your lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | OD, mm | Wd., mm | No. of Thread Starts | Material | Hardness | Each | |
Right-Hand Threaded | ||||||||
|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 24 | 9 | 1 | Black-Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 000000 |
| M12 | 3 | 28 | 11 | 1 | Black-Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| M16 | 3 | 34 | 13 | 1 | Black-Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| M20 | 4 | 40 | 15 | 1 | Black-Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
Bearing Retaining Nuts
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket. Made of carbon steel, they’re strong and wear resistant.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts. They meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
For technical drawings and 3-D models, click on a part number.
Nuts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Thread | Optional Washers | |||||||||
| Size | Pitch, mm | Spacing | OD, mm | Wd., mm | Specifications Met | For Lock Washer Specifications Met | Each | Each | ||
Carbon Steel | ||||||||||
Chamfered Face | ||||||||||
| M220 | 4 | Extra Fine | 280 | 32 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000000 | 000000000 | 0000000 |
| M240 | 4 | Extra Fine | 300 | 34 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 |
| M260 | 4 | Extra Fine | 330 | 36 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 |
| M280 | 4 | Extra Fine | 350 | 38 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 |