Tornillo hexagonal Size: M5-M4/ 1/4"- 2" Standard: GB, ANSI, DIN ... : 4.8 8.8 10.9 Thread: 6g UNC-2A Tornillo hexagonal Bolt and Nuts Washers Galvanized GI H.D.G ClassificationStandard ... 933M5-M486-600601 558 603 Bolts Hexagon head bolt, internal hexagonal screw,Allen Bolt double end bolt, stud bolt, carriage bolt ... 912 938 939 835 ANSI A-6 A-10 Standard Tornillo hexagonal