Diamond City Horseshoe Nails are Made to Work Perfectly in the Toughest Conditions. Diamond Horseshoe Nails are Manufactured From The Highest Quality Steel Using a Closely Controlled Process. This Creates a Precision Nail with High Tensile Strength and Optimum Elasticity for Consistent, Accurate Driving Without Bending Yet Clinches Easily After Wall Exit for a Firm Hold. Features. 4.5 in. Diamond City Horseshoe Nails. Made from high quality materialSpecifications. Size 4.5 in.