Haltecs TV-573A straight brass clamp in tubeless valve stems are rigorously tested and designed for use in commercial applications. These fit all standard 5/8 inch (0.625 inch) valve stem holes and are 4 3/8 inch inches long. Haltecs TV-573A valve stems are equipped with EPDM grommets that are formulated and manufactured in the USA along with high temperature valve cores.