Our range of supply of single screws of plastic processing machinery (Sheet Plant, Rafia Plant, Film Plant, Multilayer Plant, Monofilament Plant) varies from dia 18 mm to dia 275 mm with no limit in L/D relation.Screws are made from nitro alloy steel like 41 B and  toughening, tempering, stress relieving, gas nitriding & additional bimetallic coatings can be incorporated on flights depending on the process application.We use Nitro Alloy Steel material like 41 B  duly toughed, tempered & gas nitrided