... the position nut before using. Widely used in cap (lid), drum (bucket), can making, lubricant, paint manufacturing , chemical, petroleum, grain ... 2"&3/4" (70mm and 35mm) drum closure for 200-liter(55 US gallons) drum/barrelMaterial: iron/tin, zinc platedWidely used ... in cap (lid), drum (bucket), can making, lubricant, paint manufacturing , chemical, petroleum, grain& ...