Zinc propeller nut anode manufactured to US military specification 18001K by Tecnoseal in Italy, one of the worlds leading suppliers of sacrificial anodes for cathodic protection in the leisure boat market. 

Referred to as Beneteau type.

For use in saltwater

Fixing bolt is not provided.

22-25mm drilled for 6mm bolt

30 to 40mm drilled for 8mm bolt

45 to 60mm drilled for 10mm bolt

Technical dimensions are available on request