Guwanji High Strength Grade 12.9 Black Hex Nut

This Guwanji hex nut is made from high-strength carbon steel with a black finish, rated at Grade 12.9. It conforms to the GB/T 6170 standard, ensuring reliability for demanding applications.

type: Hexagonal nut Material: Carbon Steel Surface treatment: Black Implementation Standards: GB /T 6170 grade: 12.9