Heavy Duty Seals for Steel Strapping 3/4″ HD Galvanized Metal Seals for Steel Strapping, S-828, 34C, 3/4 S 5/8″ HD Galvanized Metal Seals for Steel Strapping, S-832, 58C, 5/8 S 1/2″ HD Galvanized Metal Seals for Steel Strapping, S-827, 12C, 1/2 S