135-6073-0094
PRODUCT CENTER
Cutting Tool Screws
Double-ended tool screws with opposite-hand threads, giving
Double-Ended Tool Screws | M2.5-M4 Two-Way Clamping Screws
- Size rangeM2.5-M4
- MaterialSCM435 alloy steel
- FinishBlack oxide, zinc-nickel, DLC
- Installationlocked after adjustment
- StandardGB/T 3098.1, GB/T 197
- Typical substratetool adjustment heads and precision fixtures
Product overviewOverview
The two thread ends can share a hand or run in opposite directions. With opposite hands, turning the screw moves both mating parts in opposite axial directions at once, closing or opening the gap without dismantling anything. That behaviour is used in tool adjustment heads and precision fixtures.
This page covers M2.5-M4 in SCM435 alloy steel, with black oxide, zinc-nickel, dlc as the standard finish.property class 12.9; installed by locked after adjustment.
Key featuresFeatures
- Opposite-hand threads allow two-way adjustment without disassembly.
- Both threads machined in one setup for smooth travel and low adjustment torque.
- The plain shank between threads can act as a guide or wrench flat.
- SCM435 at class 12.9 balances adjustment feel with locking strength.
Typical applicationsApplications
- Tool adjustment heads
- Precision fixtures and locating jigs
- Optical mount adjustment
Selection notesSelection
Adjustment resolution is set by the sum of the two pitches; to go finer, reduce pitch rather than increase diameter.
Frequently asked questionsFAQ
How do I specify the Double-Ended Tool Screws | M2.5-M4 Two-Way Clamping Screws?
What matters during installation of the Double-Ended Tool Screws | M2.5-M4 Two-Way Clamping Screws?
| Size range | M2.5-M4 |
|---|---|
| Configuration | Double-ended (same direction / LH + RH) |
| Material | SCM435 alloy steel |
| Property class | 12.9 |
| Finish | Black oxide, zinc-nickel, DLC |
| Standards | GB/T, ISO |
| Standard | GB/T 3098.1, GB/T 197 |
| Installation | locked after adjustment |
| Typical substrate | tool adjustment heads and precision fixtures |
| Key inspections | coaxiality, adjustment travel |
Each thread is gauged separately, and coaxiality is sampled on a runout fixture.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.
