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)-M8×25
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