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 / 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. Fits: Wrangler JK and Unlimited JKU 2007-2018 (see note below), Grand Cherokee WJ 1999-2004. Replacement for Mopar 5012436AB. NOTE: All 2007-2011 JK's use 1310 U-Joints. JK's after 2011 may have 1310 or 1350 U-Joints. If you have 1350 U-Joints these bolts may require slight grinding of the edge of the flange to prevent rubbing on the U-Joint. JK's with 1310 U-Joints will have no clearance issues. Sold by a small business in the US.