1. Materials: Stainless, Aluminum, Carbon Steel,Brass, etc 2. Grades: 2, 5, 4.8, ... -3/82.Materials of Carriage Bolts we can produce:Stainless, Aluminum, Carbon Steel,Brass,Alloy Steel,Nylon,Silicon,Bronze,etc.3 ... , and pilings. These bolts are commonly used in chain link fences, patio and ready-to-assemble furniture, machinery assembly, and even ...