1/2"-13 × 4‑1/2" Carriage Bolt – Grade 8, Plain Finish

Designed for extended‑length fastening in heavy‑duty applications, the 1/2"-13 × 4‑1/2" Grade 8 carriage bolt delivers exceptional strength and reliability where long reach and high load capacity are required. The smooth, domed head provides a clean, finished appearance while evenly distributing clamping force, and the square neck is engineered to lock securely into wood or metal to prevent rotation during tightening. Manufactured from heat‑treated alloy steel, this Grade 8 fastener offers superior tensile strength for structural and load‑bearing assemblies. The plain, uncoated finish is ideal for controlled environments or applications where coatings are not desired. Commonly used in machinery frames, equipment mounts, structural supports, and industrial fixtures requiring secure, long‑reach fastening.