Selecting Compatible Lead Screws and Nuts
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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, pitch, and number of thread starts. 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.
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 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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M26 | 5 | 1,000 | 1 | 1:1 | 5 | 7e | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 0000000 |
| M26 | 5 | 2,000 | 1 | 1:1 | 5 | 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 | ||||||||||||
| M26 | 5 | 46 | 38 | 62 | 14 | 1 | 1:1 | 5 | 7H | Not Rated | 000000000 | 0000000 |
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M26 | 5 | 25.4 | 41.3 | 1 | 1:1 | 5 | 7H | Grade 2 | Not Rated | 000000000 | 000000 |