Our 3/8" diameter Stainless Steel Carriage Bolts feature a countersunk head and a square section shank that grips into wood parts, allowing for secure and reliable fastening. Rust and corrosion resistant, these strong and durable bolts are the perfect choice for any carpentry job.

They provide a secure connection between metal and wood surfaces. Their unique self-locking design features a shallow mushroom head and a shank with a square cross-section beneath the head, enabling them to be installed with one wrench. Their non-threaded diameter is equal to the side of the square shank for easy grip.