It’s important to use pocket hole screws instead of regular wood screws to ensure precise joinery. Regular screws have threads all the way up the neck of the screw while pocket hole screws have threads that only go about halfway up the neck of the screw.  With the threads primarily in the second piece of wood, this prevents the screw from pushing the joint of the pocket hole apart as the screw is driven into the pocket hole. Check out our guide for more information about choosing the right screw for the job.