... Certification:ISO14001 ISO9001 SGS Specifications Stainless Hexagon head anchor bolts with full thread Process Capablilities Standard ISO, GB, DIN, JIS, ... . is a manufacturer of screws with well-equipped testing equipment and strong technical force. With a wide range, good quality, ... a good performance in screw industry and develops well with the support of all customers. We have passed ISO9001:2008 ...