M20x40 ZINC 10.9 Hexagon socket countersunk head screw DIN 7991 - ISO 10642
Firma Killich s.r.o. offers hexagon socket head screws with countersunk head according to DIN 7991. The hexagon socket head screws with countersunk head according to DIN 7991 are A2, A4, steel, galvanized and nickel-plated in strength 8.8, 10.9. Hexagon socket countersunk screws (DIN 7991) are hexagonal hexagonal Allen keys.
