Self drilling screws, hexagon washer head with tapping thread DIN 7504K Material: stainless steel AISI 410 or similar 4,8x19: 45.000 pcs. 5,5x25: 20.000 pcs. (complete with EPDM washer) 6,3x38: 4.000 pcs. Facade drilling screws Material: stainless steel 5,5x130 short drill 6mm: 3000 pcs. 5,5x63 short drill 6mm: 25 000 pcs.