A full line of standard shaft collars and couplings made in large sizes from stainless steel for applications in harsh and wet environments is available from Stafford Manufacturing Corp. of Wilmington, Massachusetts, US. Stafford 303 and 316 Stainless Steel Shaft Collars and Couplings feature a range of sizes from 1/4in to 10in I.D. and 1/4in to 3in I.D. respectively and can be modified with threads, keyways, and other special bore, face, and O.D. treatments. Suitable for applications in hostile environments, they incorporate a choice of 18-8 or 316 stainless steel fasteners. Available from stock in one- and two-piece, and set-screw styles, they are designed for use in building power transmission drive systems, machinery, conveyors, mixers, and related equipment. Typical applications involve exposure to harsh chemicals, solvents, detergents, weather, and water.