M4x6 Zinc 10.9 Button head screw with flange TORX ISO 7380-2T
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.
