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. 

For Seawater use

Hexagonal propeller nut anode.

Fixing bolt is not provided.

20-25mm drilled for 6mm bolt

30 to 40mm drilled for 8mm bolt

45 to 50mm drilled for 10mm bolt

Technical details are available on request