3/8"-16 × 5" Carriage Bolt – Grade 8, Plain Finish

Designed for applications requiring extended fastening length and high structural strength, the 3/8"-16 × 5" Grade 8 carriage bolt provides dependable performance in demanding industrial and structural assemblies. The smooth, domed head offers a clean finished appearance, while the square neck is engineered to seat firmly into wood or metal, preventing rotation during installation. Manufactured from heat‑treated alloy steel, this Grade 8 fastener delivers excellent tensile strength and durability for load‑bearing use. The plain, uncoated finish is well suited for controlled environments or installations where surface coatings are not required. Commonly used in machinery frames, heavy equipment mounts, fixtures, and structural connections requiring long‑reach, high‑strength fastening.