The nut that holds the sensor valve stem on the wheel rim. As TPMS hex nuts are intended for one-time use only, a hex nut is supplied as a part of the service kit for clamp-in sensors. TPMS hex nuts are sized for either 11mm or 12mm sockets. It’s of particular importance with the hex nut to apply proper torque via torque tool to form an airtight seal and to avoid sensor damage.

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