20/400 Black Smooth Straight PP Cap / F217 Liner

When the brief calls for a well-defined packaging closure, Part 138310, the 20/400 Black Smooth Straight PP Cap / F217 Liner, provides a practical specification to evaluate. Prototype with the intended container and product to verify torque range, sealing, and consumer handling. Even on the same neck finish, liner thickness and thread engagement can materially change seal performance. It may fit briefs involving cosmetics, personal care, wellness, supplements, household, and specialty products.