Pretty strong.

High performance anchor FH II

1. Optimised screw and bolt length for reducing the hole depth.
2. The unit of expansion sleeve and cone leads to the highest tensile loads with very small edge distances and spacings in cracked and non-cracked concrete..
3. The black plastic ring stands for the highest performance and is used to absorb the tightening slip (so-called cavity compensation). The fixing is prevented from rotating.
4. The high steel strength (strength class 8.8) and the optimal interaction of screw and sleeve (enlargement of shear surface) ensure the highest shear load-bearing capacity.
5. Fixing head available in four versions:
   
• Hex screw
• Countersunk screw
• Cap nut
• Bolt head