JConcepts has your 1/8th buggy or truck, locking wheel nut needs covered with the 17mm fine thread capped wheel nut set. These high precision wheel nuts are flanged and knurled for locking security and feature a closed end to protect from dirt and debris build-up in the Axle or hub. The JConcepts wheel nuts are intended for use with Associated, Mugen, Losi, Kyosho, Hot Bodies and X-Ray vehicles.