Made of low carbon alloy steel after heat treatment.The shear stress grade of the axle is 10.9Gpa. Tensile strength is 1000MPa.Yield ratio is 0.9 Diameter: 10mm/0.39″ | Axle lenght: 185mm/7.28″ | Over all lenght??195mm/7.68″ Axle Length from the shoulder to the thread 185mm /7.28inches. Package Content: 1 Pc axle. Please Check The Axle Length Carefully Before Your Purchase Please feel free to contact us if you have any question, we will reply within 24 hours.Product Description Fits:10mm classic rear axle.Please Compare Our Product Against Yours, Including Its Appearance, Size,Shape Before Ordering.Thank You.