ABH Pivots and Pivot Sets are designed to be the highest quality pivots in the door and hardware Industry, ABH pivots are manufactured from Stainless Steel, come standard with Heavy Duty Bearings, and as a standard are fire rated. Pivots and Pivot Sets are the most ideal way to hang a door to achieve the longest lasting life of an opening. Based on the laws of Physics because the weight of the door is carried on the bottom pivot rather than the frame assembly, Pivots prevent the frame assembly from sagging over time.