M4, M5 is made of Zinc Alloy, M6, M8 is made of iron.
Model Number : M4/M5/M6/M8
Material : Carbon Steel
Note:
1. The above data is manually measured, there may be some errors, please understand.
2. Due to light and screen differences, the color of this product may be slightly different from the picture, please refer to the actual product.
3. There are similar, related and complementary products of the same style and type in the store, welcome to buy!