Secure floating dock systems with confidence using the Multinautic Anchor- Chain Retainer Steel Plate Set. Designed specifically for anchoring floating wood docks, this heavy-duty boat dock chain retainer set helps maintain dock positioning and stability as water levels and conditions change. Manufactured from HD G200 hot-dip galvanized Heavy-Duty 1/4-inch thick steel, these chain retainer plates deliver excellent resistance to corrosion, rust, and long-term outdoor exposure in freshwater environments. Built to accommodate chains up to 5/16", the reinforced steel design provides a strong, reliable anchor point that supports consistent dock performance season after season. Ideal for new installations or dock maintenance upgrades, this anchor-chain lock bracket stopper set offers dependable strength where secure anchoring matters most. Compatible with standard 1/2" carriage bolts (sold separately), installation is straightforward and adaptable to a variety of floating dock configurations. Sold as a convenient pair, these chain lock stopper brackets are a practical choice for dock builders, contractors, and waterfront property owners seeking a durable anchoring component engineered for long-lasting performance.