... M40-M50(50mm-1500mm) According to customers' Drawing and samplesLiner boltsNon-standard fasteners1) Materials:Carbon steel,stainless ... 8-12.94) Standards:DIN,ISO,UNC.BSW and unstandard etc.5) Packing:paper bag,wooden case, ... according to clients' drawings7) German standard,British standard and American standard etc.8) Grade:4.8,6 ... : According to customers' requirements Special ball mill and crusher bolt