3/4"-10 × 5‑1/2" Carriage Bolt – Grade 8, Plain Finish

Designed for extra‑long fastening applications where maximum strength and stability are essential, the 3/4"-10 × 5‑1/2" Grade 8 carriage bolt delivers reliable performance in heavy‑duty structural and industrial assemblies. The smooth, rounded head provides a clean finished appearance and helps distribute clamping force evenly, while the square neck is engineered to lock securely into wood or metal to prevent rotation during installation. Manufactured from heat‑treated alloy steel, this Grade 8 fastener offers exceptional tensile strength suitable for high‑load, load‑bearing use. The plain, uncoated finish is ideal for controlled environments or applications where surface coatings are not required. Commonly used in machinery frames, heavy equipment mounts, structural supports, and industrial fixtures requiring extended reach and dependable fastening strength.