【HIGH QUALTY】- The carriage bolts are made of 304 Stainless Steel, which has the highest corrosion resistance. This makes them the perfect choice for using in any environment (including marine/saltwater).
【ADVANTAGE】-Our carriage head bolts are very strong and are great for both indoor and outdoor use. This big round domed head are designed to eliminate the need for a washer; Square neck underneath the head helps self locking. Whether you are attaching a piling to a saltwater dock or securing a swing set, you can depend on carriage bolts to hold and last for a long time.
【EASY AND QUICK INSTALLATION】-Rotate the square neck bolt with a wrench for tightening to complete the installation.
【PACKAGE INCLUDE】-12pcs x Round Cap Head Stainless Steel Square Neck Bolts