M2.5-0.45X5 ISO 7045 Metric Six Lobe Drive Pan Machine Screw Class 4.8 Full Thread Zinc RoHS (Pack Qty 5,000) BC-MI2.557045T

Machine screws form a fastening superior in strength to spaced thread screws. Metric screws are the type almost exclusively used in items manufactured in Europe Steel: Class 4.8 machine screws shall be made from a carbon steel, partially or fully annealed as required, which conforms to the following chemical composition Carbon: 0.55% maximum; Phosphorus: 0.05% maximum; Sulfur: 0.06% maximum. Rockwell B 71 - 99.5