3/8"-16 × 2‑1/2" Carriage Bolt – Grade 8, Plain Finish

Built for applications that demand extended grip length and high load capacity, the 3/8"-16 × 2‑1/2" Grade 8 carriage bolt offers dependable strength and stability in demanding assemblies. The rounded head provides a smooth, finished exterior, while the square neck is designed to lock into wood or metal to prevent rotation during tightening. Manufactured from heat‑treated alloy steel, this Grade 8 fastener delivers superior tensile strength suitable for structural and high‑stress use. The plain, uncoated finish is ideal for controlled environments or applications where surface coatings are not required. Commonly used in machinery frames, equipment mounts, fixtures, and structural connections requiring secure, longer‑reach fastening.