TWJ is a professional fastener manufacture having 20 years experience in China .We have many product ranges, including screw, nut, bolt, thread rod, washer, spring, and much more. As a valued TWJ customer, you will enjoy the benefit of our best service and sincere support. We will be pleased to develop OEM models for all customers. Our detailed and vast product knowledge, together with emphasis on customer service and satisfaction, gives TWJ an evident advantage over existing competition.