BLACK CAP HEAD SCREWS ALLEN SOCKET BOLTS HIGH TENSILE 12.9 M3 M4 M5 M6 M8
12.9 GRADE STEEL HIGH TENSILE ALLEN SOCKET CAP HEAD SCREWS HEX M3, M4, M5, M6, M8. Allen Socket Cap Head Bolts Screws. High quality high tensile socket cap head screws made of plain steel 12.9 and to ISO 4762 (DIN 912) standards.