M4x25 ZINC 10.9 Hexagon socket button head screw with flange ISO 7380-2
Firma Killich s.r.o. offers hexagon socket head cap screws with hexagon socket head and collar acc. to ISO 7380. In the hexagon socket head cap screws with hexagon head collar acc. Hexagon socket head cap screws, hexagon head and collar (ISO 7380) are hexagon socket Allen key.
