... ,12.9 3.Material:carbon steel 140#,45# Spring pin 1.Surface:Black Oxide, Grey Phosphate, Yellow/Silver Zinc ... be made as per sample Item Model Leaf Spring Pin and Bush for DODGEItem No. Measurement 3/4''x112Grade ... Color + Protective Oil;Quality of Grade 10.9 Spring Pin Hardness: HRC53-58 Good Quality, Good AppearanceCarton Packing Standard ... and new model design are available Leaf spring Pin bushing