Hongda Standard Parts Manufacturing Co., Ltd. in Yongnian County has strong technical expertise, superior quality, reasonable prices, and considerate service. Production scope: M16-M100 rough nuts and polished nuts, high-strength series nuts, M16-M24 smooth nuts. Custom-made various special-shaped nuts, slotted nuts, thickened nuts, square nuts, reverse thread, fine thread, trapezoidal thread, transmission tower, coal mine, electric power, enlarged hole, highway guardrail nuts according to customers' requirements.