1. The manufacturer and the customer should discuss using high-quality hexagonal socket bolts to produce wire. On the other hand, manufacturers must remember to harden the produced natural color hexagonal socket bolts, and must require the hardening factory to meet the indicated hardness index.
2. Customers are required to use the corresponding tools reasonably when using them, and to avoid using unreasonable tools to drill hexagonal bolts for convenience. Also, let me tell the customer that there is no need to use too much force when tightening the hexagonal socket bolts. Just balance the efforts well. The M2.5 hexagonal socket bolt should be able to withstand a torque of more than 2N. m under normal circumstances. So we need to adjust the force exactly, not too much force.