M12x40 ZINC 5.6 Hexagon head bolts for steel structures with hexagon nut DIN 7990
Firma Killich s.r.o. offers hexagon bolts for steel constructions according to DIN 7990. In the range of DIN 7990 screws, the screws are steel and galvanized in strength 5.6, 8.8. Hexagonal screws (DIN 7990) are on hexagonal wrench.
