Sun Through Industrial Co., Ltd. was established in 1996 with its plant located in Changhua County of Taiwan. It is particularly good at producing bi-metal self-drilling screws that can penetrate 12mm to 25mm super thick iron plates. It mainly produces long screws with a monthly capacity of 1.5 million to 2 million pieces. Its manufacture is professional and all bi-metal self-drilling screws go through 17 to 18 processes just to deliver the highest quality and durable screws to the hands of clients. Bi-metal screws are the company’s bestseller. Furthermore, the company has gone full throttle in developing a new product for the next phase – 14.9 grade hexagon socket bolts!(…)
