Upgrade your junk OEM hub bolts with these 10.9 Class (metric equivalent to Grade 8) hardened yellow zinc plated hex flange bolts. These bolt the front wheel hubs / unit bearings to the steering knuckles. These fit better than the tapered factory bolts which were designed to reduce cost. They have far better corrosion protection over black oxide and have a larger hex head which is less likely to cause you problems the next time you need to remove them. Includes 6 bolts, enough for both the driver and passenger side. Compatible with Jeep Grand Cherokee WK2 2011-2021, also Comaptible with Dodge Durango 2011-2025. Replaces Mopar 6503912. Sold by a small business in the US.