Installs replacement snap-in valves to Schrader OE sensors. T-10 Torx head installs screws to recommended torque for proper sealing and secure installation. Order individually. CAUTION: Always use new grommets, nuts, valve caps and valve cores when performing any tire service. Use new nickel-plated electroless valve cores with aluminum valve stems. Refer to manufacturer s specifications for proper torque requirements when replacing nuts and valve cores.