BCS develops spring products and supplies automotive fixtures. Now it will enter into the field of fasteners. The company's automotive-related products account for 85% of the total, and are widely used by major domestic vehicle manufacturers in Japan. The company's performance is good, and It is expected that the company will enter the transition period of electric vehicleization. The president said that he wants to enter other fields. The goal now is to provide loose products for the special bolts and nuts of the electric railway tower, that is, “NS.PIN 4” anti-loose ring. The front end of the product will bite into the bottom of the teeth to prevent the nuts from loosening. Because no hand tools are needed, they can be assembled with a single press and can be reused. Since the ring can be directly accommodated in the outer diameter of the thread, After assembly, the nuts can still be fastened again.