INSTALLATION: Installation is NOT easy unless you have a jack, spring compression tool, large airguns, etc. If you don't spend $75-$125 out and pay a retailer. in order to do this. A YouTube video from American Truck shows that the upper strut bolts are installed from the top down (WRONG!) and not from the bottom up. Also make sure to use LocTite on all screws. The instructions are simple, but there are not enough high-quality pictures. They also have no torque value. The biggest mistake for anyone who has ever written this is that you forgot to state that you need to remove the spindle nut and separate the hub from the spindle. Only then will you have enough clearance to remove and reinstall the strut/spring on a 2015 and newer Ford F150. Happy end. The threads are straight and correct. The screws have a hex head and are easy to install, however there is no mention of Rockwell hardness or screw quality. SUPPORT: Called Supreme and the girl was friendly but clueless. No technical support available. You're on your own.