Bung Closure
Bung Closure
A threaded plug closure fitted into openings in drum and pail heads for filling and dispensing.
A bung closure is a threaded plug that seals openings (bung holes) in drum and pail heads. Bungs are typically 2-inch (coarse thread) or 3/4-inch (fine thread) diameter and made from HDPE or metal. They allow filling and dispensing without removing the entire lid. Bung closures are standard on closed-head drums and are essential for liquid storage, chemical handling, and UN-certified container configurations.