... packing,small boxes,pocket,as your requirement5)standard: din1.DIN 931-2 M42 to M160*6 hexagon head bolts ... - Product grade B 2.DIN EN 1662 Hexagon bolts with flange - Small series ( ... ISO/DIS 15071:1996,modified) 3.DIN EN ISO 4014 Hexagon head bolts - Product grades A ... Product grade A and B (ISO 4017:1999 5.DIN EN ISO 4018 Hexagon head screws - Product grade C ...