Size 40 Natural Jar Corks

Size #40 Natural Jar Corks are tapered cork used as closures for jars and wide diameter openings. Made from 100% natural cork. Size #40 Jar Corks are manufactured to exacting standards to provide a secure fit. Bulk quantities are available. These corks are designed to achieve a reliable, long-lasting seal that won’t become loose over time. They also have minimal air and liquid permeability, making them an ideal closure for preserving the quality of the jar’s contents.