1)nut and bolt 2>Grade: Q235,202,304,316L 3>Finish: Zinc Plated ... head bolts, expansion bolt(ANSI,BS,DIN), eye bolt (DIN444) and so on. NUT:(M12-45), include spring nut, hex nut(DIN934), cap nut(DIN1587), hex flange ... nuts(DIN6923), hex slotted nuts(DIN935) and so ...