Din 934 Metric Hex Nuts 18 8 Stainless Steel Black Oxide

Class 6 nuts are to be used with screws and bolts of property class 6.8 or lower. They are commonly used with metric machine screws. Class 6 nuts shall be made of a steel which conforms to the following chemical composition-- Carbon: 0.50% maximum; Phosphorus: 0.060% maximum; Sulfur: 0.150% maximum