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M4x25 hex socket set screw (grub screw) to DIN 916 / ISO 4029, typically ISO 898-5 class 45H. Carbon steel — used to secure collars, pulleys, and components on shafts; request coating if corrosion protection is required.
M4x25 set screws locate hubs, gears, and collars on shafts where a headless fastener is required.
| Specification | Value |
|---|---|
| Dimensions | M4x25 |
| Material | Steel |
| Alloy/Grade | ISO 898-5 class 45H |
| Standard | DIN 916 / ISO 4029 |
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