This bolt comes without the slot for O-rings. This ensures a smooth surface of the bolt body.

The countersunk bolt can be used to connect Siegmund aluminum profiles and other Siegmund components. The bolt head is flush with the borehole.

Due to the adapted collar, this countersunk bolt is only suitable for clamping aluminum profiles.

Our recommendation when working with aluminum profiles.

Clamping torque dependent on material.

When clamping aluminum parts, the bolts must only be tightened hand-tight.

‐ for clamping 2 components
‐ with hexagon socket (Size 4)