Viti a testa esagonale DIN 933 Material: 1.4410 or 1.4462 M10x20: 5000 pcs. M10x25: 500 pcs. M10x30: 1000 pcs. Hexagon nuts DIN 934 Material: 1.4410 or 1.4462 M10: 6000 pcs. 3.1 certificate is required Please indicate transport fee