3/8″ NPT Hex Socket Pipe Plug HDPE Polyethylene BLACK Fastener I11088BK

3/8″ NPT Polyethylene Hex Socket Pipe Plug. Polyethylene is unique because of its flexibility at low temperature, excellent electrical resistance, and low dielectric constant. Polyethylene’s self lubricating properties also make it ideal for applications such as rollers, skids and other end uses which call for a non-stick, low-friction material.