1. To be hardened
For purchasers, pay attention to the production of hexagonal screws. In addition, we also need to pay attention to whether the manufacturer hardens the natural hexagon socket bolts. This point can be obtained by the manufacturer. The indicated hardness index.
2. Pay attention to the use of supporting tools
When handling hexagonal screws, do not use inappropriate tools for convenience. There is no need to use excessive force when hitting hexagon bolts. Excessive strength can easily break the hexagonal screws.
