8.8 Grade High Strength Hex Bolt and Nut Set

Durable JueCeng 8.8 Grade high-strength carbon steel hex bolt and nut sets with blackened finish. Each set includes bolts, nuts, and flat spring washers, designed for robust fastening applications conforming to GB standards.

Material: Carbon Steel Implementation Standards: GB length: 100mm Surface treatment: Black type: Bolt Nut Flat Spring Washer Combination Performance level: 8.8