Tekno RC 12mm Aluminum M6 Driveshaft Hex Adapter Set (4)TKR1654X This is a pack of four Tekno RC Lightened 12mm Wheel Hexes. These wheel hexes are durable, light and inexpensive when compared to CNC aluminum hexes. They are a stock replacement part for the SCT410. 3, but can be used on the original SCT410 as an optional upgrade as well. Package includes four wheel hexes and four set screws.. Team Associated SC10 4x4 Tekno RC EB410 Original Tekno RC EB410. 2 Tekno RC ET410 Original Tekno RC ET410. 2 Tekno