1.We can process hexagon nuts made of different materials. ... can process1. by componentsBolts, Screw bolts/Studs, Nuts, Tapping screws, Wooden screws, Washers/Gaskets, Check ... PF, Pan washer, Cheese, Countersunk, Fillister, hexagon, Hexagon washer head, Hexagon socket button head and etc.3. by ... type, H drive, Hexagon socket, Square socket, Torx, Triangle drive, Indented hexagon and etc.Certificates:ISO ...