These pins are made of O1 tool steel, hardened and nichel plated for long life.
THis hinge pin, due to it”s unique design will allow the arm and the hinge pin to rotate in the bushing. this causes less drag on the suspension and allows the arms to react quicker to changes. The design is beneficial because if the hinge pin does get bent, It will most likely be in the smallest area
of the pin. This area is not in the arm or the bushing allowing the pin to continue to perform as normal.