Filter by
System of Measurement
Thread Size
Nut Type
Component
Thread Type
Performance
Dynamic Thrust Load Capacity
Thread Direction
Number of Mounting Holes
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Tensile Strength
RoHS
REACH
Export Control Classification Number (ECCN)
DFARS Specialty Metals
Metric Ultra-Precision Lead Screws and Nuts
 |
 |  |  |
Style A | Style B | Style C |
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 size, thread type, thread size, thread pitch, and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
| |
Style A | Style B |
Acetal—Acetal nuts have good wear and 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.
External Thread | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Wd. | Ht. | Dia. | Hex Wd. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
Acetal | ||||||||||||||||||||
| A | M4 × 0.3 mm | 11/16" | — | — | 0.297" | 7/16" | Metric Rounded Trapezoidal | 1:1 | 1 | 0.3 | 3/8"-24 | 3/16" | Not Rated | 8,000 | 25 | -40 to 185 | 7549K59 | 000000 | ||
PEEK | ||||||||||||||||||||
| B | M4 × 1 mm | 1/2" | 0.402" | 0.354" | — | — | Metric Rounded Trapezoidal | 1:1 | 1 | 1 | M9 × 1 mm | 13/64" | Durometer 83D | Not Rated | 10 | — | 90500A240 | 00000 | ||
Flange Nuts—Right-Hand Thread
|  |
Style C | Style C |
Acetal—Acetal nuts have good wear and corrosion resistance.
Wear-Compensating Internal O-Ring—Flange nuts with wear-compensating internal O-ring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.
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.
Flange | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Wd. | Ht. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Temp., ° F | Each | |||
Acetal | ||||||||||||||||||||
| C | M4 × 0.3 mm | 1/2" | 0.297" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 1:1 | 39/64" | 1 | 0.3 | Not Rated | 8,000 | 25 | 2 | -40 to 185 | 7549K63 | 000000 | ||
PEEK | ||||||||||||||||||||
| C | M4 × 1 mm | 13/32" | 0.354" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 1:1 | 19/32" | 1 | 1 | Durometer 83D | Not Rated | 10 | 2 | — | 90500A270 | 00000 | ||
PEEK with Wear-Compensating Internal O-Ring | ||||||||||||||||||||
| C | M4 × 1 mm | 31/64" | 0.406" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 1:1 | 19/32" | 1 | 1 | Durometer 83D | Not Rated | 5 | 2 | — | 90500A310 | 000000 | ||
Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
 |  |  |  |
Style B | Style C | Style D |
Externally Threaded Nuts—Right-Hand Thread
| |
Style B | Style C |
Acetal—Acetal nuts have good wear and 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.
External Thread | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Wd. | Ht. | Dia. | Hex Wd. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
Acetal | ||||||||||||||||||||
| B | M4 × 1.25 mm | 11/16" | — | — | 0.297" | 7/16" | Metric Rounded Trapezoidal | 8:1 | 8 | 10 | 3/8"-24 | 3/16" | Not Rated | 8,000 | 25 | -40 to 185 | 97783A210 | 000000 | ||
PEEK | ||||||||||||||||||||
| C | M4 × 1 mm | 1/2" | 0.402" | 0.354" | — | — | Metric Rounded Trapezoidal | 4:1 | 4 | 4 | M9 × 1 mm | 13/64" | Durometer 83D | Not Rated | 4 | — | 4537N166 | 00000 | ||
| C | M4 × 1 mm | 1/2" | 0.402" | 0.354" | — | — | Metric Rounded Trapezoidal | 8:1 | 8 | 8 | M9 × 1 mm | 13/64" | Durometer 83D | Not Rated | 10 | — | 4537N167 | 00000 | ||
Flange Nuts—Right-Hand Thread
| |
Style D | Style D |
Acetal—Acetal nuts have good wear and corrosion resistance.
Wear-Compensating Internal O-Ring—Flange nuts with a wear-compensating internal O-ring resist backlash to keep the nuts in place and maintain a tight fit even when their threads begin to wear. They’re often used in 3D printing and robotic applications.
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.
Flange | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Wd. | Ht. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Temp., ° F | Each | |||
Acetal | ||||||||||||||||||||
| D | M4 × 1.25 mm | 1/2" | 0.297" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 8:1 | 39/64" | 8 | 10 | Not Rated | 8,000 | 25 | 2 | -40 to 185 | 97783A250 | 000000 | ||
PEEK | ||||||||||||||||||||
| D | M4 × 1 mm | 13/32" | 0.354" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 4:1 | 19/32" | 4 | 4 | Durometer 83D | Not Rated | 10 | 2 | — | 4537N187 | 00000 | ||
| D | M4 × 1 mm | 13/32" | 0.354" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 8:1 | 19/32" | 8 | 8 | Durometer 83D | Not Rated | 10 | 2 | — | 4537N188 | 00000 | ||
PEEK with Wear-Compensating Internal O-Ring | ||||||||||||||||||||
| D | M4 × 1 mm | 31/64" | 0.406" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 4:1 | 19/32" | 4 | 4 | Durometer 83D | Not Rated | 4 | 2 | — | 4537N207 | 00000 | ||
| D | M4 × 1 mm | 31/64" | 0.406" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 8:1 | 19/32" | 8 | 8 | Durometer 83D | Not Rated | 4 | 2 | — | 4537N208 | 00000 | ||
