Image 1 of 1 E-00Z Engine Pencil Zinc Only (No Brass Plug) $6.69 Thread: 5/16-18, Length (IN): 2, Diam. (IN): 1/4 Add To Cart Added! Thread: 5/16-18, Length (IN): 2, Diam. (IN): 1/4 You Might Also Like Quick View E-3C Marine Engine Pencil Anode, Complete With End Brass Plug $31.79 Quick View E-1HC Marine Engine Pencil Anode, Complete With End Brass Plug $22.60 Quick View E-1E Marine Engine Pencil Anode, Complete With End Brass Plug $20.10 Quick View E-3A Marine Engine Pencil Anode, Complete With End Brass Plug $28.62 Quick View E-1D Marine Engine Pencil Anode, Complete With End Brass Plug $20.10