Check the listing for details. BulletProof CRP Corrosion Resistant Trailer Hitch Pin. Condition: New. Listed at 39.95 USD. BulletProof Corrosion Resistant Pins are precision machined from our patented stress-proof steel. They are a necessary complement to any BulletProof Hitch® or accessory and have been designed to ensure strength, durability and utility. The pins feature an electroless nickel undercoat with a zinc plating topcoat for unsurpassed corrosion resistance. Many northern states have a high concentration of calcium chloride or "salting" on the roads leading to rapid corrosion on standard coatings. The dual-plating process of the BulletProof Corrosion Restistant pins is designed to protect the integrity of the pins, while ensuring the strength for many years to come. Sold as a set of two pins and includes two R-clips. They are rated to the full capacity of any BulletProof Hitch® .