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

Built for long‑reach fastening in high‑strength applications, the 3/8"-16 × 3" Grade 8 carriage bolt provides exceptional durability and holding power in demanding assemblies. The rounded head delivers a smooth, finished exterior, while the square neck is designed to draw tightly into wood or metal to prevent bolt rotation during tightening. Manufactured from heat‑treated alloy steel, this Grade 8 fastener offers high tensile strength suitable for structural and 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, equipment mounts, fixtures, and structural connections requiring extended fastening depth and reliable strength.