Stock number 3CPLB0581PW is a continuous thread 58-400 Black Metal Cap with a Plastisol Liner. This closure has ridges along the side and a smooth top. Plastisol lined caps are the perfect option for hot-fill processes. After the non-removable plastisol liner is heated/warmed from the product temperature, it will solidify and create an airtight, hermetic seal. To ensure compatibility, please request a sample for testing. Pair this closure with any of the compatible jars below for a finished product.