Heavy-Duty Carriage Bolts | Anti-Corrosion & Custom Sizes

Black oxide carriage bolts are a type of fastener that combines the strength and functionality of carriage bolts with a protective black oxide finish. Carriage bolts are characterized by their square - shaped shoulders under the head, which prevent the bolt from rotating when tightened. The black oxide finish is applied through a chemical process that creates a thin, corrosion - resistant layer on the surface of the bolt. This finish not only enhances the bolt's durability but also gives it a sleek, black appearance, making it suitable for applications where aesthetics are important. In the automotive industry, black oxide carriage bolts are commonly used in the assembly of car body panels and interior components. The corrosion resistance of the black oxide finish helps protect the bolts from exposure to road salt, moisture, and other environmental factors, ensuring long - term reliability. In construction projects, these bolts are ideal for fastening wooden structures, such as decks or pergolas. The square shoulder under the head provides a secure fit in the wood, preventing the bolt from loosening over time. For example, when building a wooden deck, black oxide carriage bolts can be used to connect the beams and joists, creating a stable and safe structure. In addition to their functional benefits, black oxide carriage bolts are also easy to install. They can be used with a variety of nuts, such as carriage nuts or hex nuts, depending on the specific application. When selecting black oxide carriage bolts, it is important to consider factors such as the size, length, and material grade to ensure they meet the requirements of the project. If you need more information about black oxide carriage bolts or would like to discuss your specific needs, please contact us.