Machine hexagon head screws, M4 x 20 mm, DIN 933, thread to head, galvanized steel
Machine hexagon head screws according to DIN 933, with thread up to the head, quenched and tempered steel, electrogalvanized; grade 8.8. Design: Ø : M4 mm; length: 20 mm; SW 7; PU: 100.
