StrongHold IMLTFC152H-L6L Fully Coated Metal Locking Ties are suitable for a variety of environments, from general purpose applications all the way to chemical plants and refineries the StrongHold IMLTs are strong enough to withstand the most corrosive environments. Heavy, 20.5" (521mm) length, 0.010" (0.25mm) thick. For indoor/outdoor use, made of 316L stainless steel, fully coated, are black in color, and come in packages of 50.