Not sure what type of material to use

Type BK-1 Fits all models except 36C

For propeller shaft: 50mm

C-C: 265mm/10

Article: R800271e

zn anod typ 5 120 46 23mm Weight_3KG/6.6LB Not sure what type ofProduct specification Type 5 Zinc anode Material: Zinc Alloy : MIL DTL 18001L Zn Article: B110050 Net weight : 0. 44 KG 0. 97 lbs Gross weight: 0. 5 KG 1. 10 lbs Reinforcement Insert: Steel Hole distance: 140mm Bolt hole : 7x13mm 0. 28x0. 51 inch Total length: 164mm 6. 46 inch inch Length: 120mm 4. 72 inch Width: 46mm 0. 81 inch Height: 23mm 0. 91 inch Application areas: Ship hull Port Slip Cable Pipeline Dykdalb Pump Pontoon Piers Pillar Zinc anodes