Shanghai jian & mei is a pofessional manufacturer of high strength bolts, thread rods, nuts and Non-standard hardware more than 8 years. Our products are mainly applied in Tower&Pole line, Oil&Gas line, Structural Steel & Metal Building line, Highway Guardrail line, Tractor parts & Farm Accessories line and so on.
Bending a grade 8 bolt 6×1/4 inch double underhand for the first time. I didn’t move it under 2 inches but it counts. Earlier in the day I failed and then I got it.