... .)Standard:DIN, ANSI,JIS,BS,GB,ISO,etc.3.)Finish:black,zinc plated,dacromet,etc4.)Material:45#,40CR,35CrMo,35#2 ... you can supply the sample or drawings.2.we manufacture from purchasing material to surface treament.3.our packing is netural ... ,we can meet your requirement. 1160-1190 Axle Wheel Bolt with black plated