So are you tired of those crazy thread-in glides unscrewing and getting lost? Lots of our dealers came to us and asked if we could do something about this cast glide problem. Because of the many screw sizes, it took some real head scratching and research, but we did it. The secret is using the patented Forever Glide cup, foam and glide units and attaching them with automotive grade, push-fit fasteners. This enables two sizes of push-fits to replace a large range of U.S. and metric screw-in glides. So here’s how you do it: