Ajax Metal Processing is cleaning up the market when it comes to hardening and protecting small metal parts, such as nuts and bolts, primarily for customers in the automobile manufacturing industry. Services include heat treating, plating, adhesive and sealant application, annealing, cleaning, and coating. The company's wire rod annealing and pickling equipment includes four surface combustion batch-type furnaces with a total annealing capacity of 230 tons per day. Ajax Metal Processing operates two plants in Michigan and one in Indiana. The company opened for business in 1967.