Dorman 803-115 Hex Bolts are Grade 5, zinc‑plated hex fasteners sized 5/16-18 and 1-1/2 inches long. These bolts deliver Grade 5 strength for medium‑duty fastening and feature a durable zinc finish to resist corrosion. With a 5/16 inch diameter and 18 threads per inch, they are a standard coarse‑thread bolt suitable for general mechanical applications that require a 1.5 inch long fastener.
