METRIC HOLOKROME® SOCKET COUNTERSUNK SCREWS GRADE 12.9 ISO 10642
Holokrome® Socket Countersunk Screws Grade 12.9 Steel Self Colour To ISO 10642.
Due To Head Configuration Countersunk Screws May Not Meet The Minimum Ultimate Tensile Loads For Class 12.9. Minimum Hardness All Sizes Rockwell 38HRC