Guwanji High Strength Black Hex Nuts

Discover Guwanji high-strength metric hex nuts, meticulously crafted from durable carbon steel with a sleek black oxide finish. Conforming to GB/T 41 standard, these nuts are available in various sizes and strength grades (8.8 and 12.9) to meet diverse fastening requirements, ensuring reliability and robust performance.

grade: 12.9 type: Hexagonal nut Strength level: 12.9 Surface treatment: Black Metric/Imperial: Metric Surface color: black Material: Carbon Steel Implementation Standards: GB /T 41 Nominal size: 2