The ZHC-23 Bolt-On Zinc Sacrificial Anode delivers reliable cathodic protection for marine and industrial applications. M&M Industries, Inc. manufactures each ZHC-23 anode in the USA using high-purity MIL-A-18001 zinc alloy. M&M gravity casts every anode in a controlled U.S. foundry environment to maintain consistent quality, alloy chemistry, and corrosion protection performance.
The ZHC-23 Bolt-On Zinc Sacrificial Anode measures 6″ x 12″ x 1-¼”. ZHC-23 carries a nominal weight of 21 lbs. M&M equips each anode with a galvanized steel core measuring ¼” x 1-½ x 8″. Each core incorporates (2) 5/8″ mounting holes, 6″ center to center to simplify installation and provide secure attachment.
Learn more about the advantages of gravity cast cathodic protection products here.




