Perfect fit for 2004 Chevy Tahoe 4.8 wheel hub. The bolts appear to be high quality steel and I can see they will last for years or until another falls out of the wheel hub. I've never had any of these brands of bolts fall out, but the ones that come with the aftermarket hubs you buy tend to fall out and you won't notice until you get under the car to lube it up or one take break. Be sure to check these, as the wheel hubs are only held in place by three screws. That's less than half the retail price. Highly recommended!