Produce Semi Axle Stud / Semi Axle Bolt: --Grade 8.8. --Phosphate (Black/Grey Color). --Metric/Inch size are available. Produce all sizes of Semi Axle Stud / Semi Axle Bolt:1). QUALITY: Grade 8.8;2). SURFACE PROTECTION: Phosphate + Protective Oil (Black / Grey);3). Metric/Inch size are available.4). SPECIAL SERVICE: Can be made according to customers' drawings and/or samples; 5). PACKAGE: ...