The Assault RC Billet Aluminum 25t clamping servo horn is perfect for all the Team Associated 6 series vehicles and more. This anodized, laser etched servo horn has bolt action clamping for tight fit on your servo to eliminate the chances of striping the splines on both the servo and the horn. This horn has great versatility for lots of performance applications. The mounting location is 15.5mm on center of horn. 3mm mounting holes with good meat to dig in to.