Chengli Fastener Company Ltd. is a leading manufacturer and supplier, specializing in the production and marketing of fasteners, especially: machine bolts, machine nuts, hex nuts, bolts and also rail track bolts. Chengli Fastener Company Ltd. has worked to develop: high-level technology; research and development improvements; as well as better production and marketing capabilities. The quality of our fasteners, which include machine bolts and machine nuts, meets all the essential international and national requirements, and our application and processing knowledge provides a proficiency resulting in measurable product performance improvements over our competitors. Our machine nuts and machine bolts are produced according to the standards of ANSI and ISO9001. The quality assurance program we employ assures that our products are manufactured to our standards every time, and that they are of the highest quality--consistently--so that our customers, both here in China and abroad, can feel secure and can trust in using our machine nuts and bolts for every application.