To call these Tabs is just a little bit off the mark. These are over 1 pound each! They are meant for the bottom of the rig, the side taking a beating now and then (all the time). We make them .375 thick and with a sloped shape to survive everything you can throw at em', we are pretty sure you can wear them out but you will be very challenged to break them. They are high enough around the bolt to give all but the very largest Heims complete protection and still short enough on the joint end to allow full articulation. These also make an excellent Ram mount off of a truss. Made exclusively of A50 Steel Plate for its density and strength. We have aded these in 1/4" also for a couple of dollars less for those that don't need 3/8". These are sold in pairs.