Hexagon head serrated screw with flange W-0274, steel 8.8, zinc-plated, blue passivated (A2K)
W-0274 steel 8.8 zinc plated
SCR-HEX-FLG/UKV-8.8-WS13-(A2K)-M8X20
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- The locking teeth push into the material of the component that is being screwed and block the inward unlocking torque in the unscrewing direction
- The material that is being screwed must demonstrate a significantly lower hardness in comparison to the screw (surface hardness of the screw: min. 250 HV)
- Suitable for short clamping lengths in particular
 | |
Thread type x nominal diameter (d1) | M8 |
Length (l1) | 20 mm |
Head diameter (dc) | 17.9 mm |
Head height (k1) | 8.1 mm |
Standards | WN 274 |
Material | Steel |
Property class | 8.8 |
Surface | Zinc plated |
Locking device operating principle | Serration |
Locking function | Locking against self-loosening by mechanical interlocking |
Head type | Hexagon head with flange |
Drive type | Outer hexagon |
External drive (s1) | WS13 |
Thread type | Metric thread |
Pitch | 1.25 mm |
Thread form | Standard metric thread |
Thread design | Full thread |
RoHS-compliant | Yes |
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