... phosphated: white/yellow/balk/grey Self Drilling Screws DIN7504 (K, L, N, P, Q) / ASME B18.6.4 & SAE J78 specifications Self ... -drilling fasteners for attaSelf Drilling ScrewsDIN7504 (K, L, N, P, Q) / ASME B18.6.4 & SAE J78 specificationsSelf-drilling ...