YIHUI has already been verified through ISO9001:2016 International Quality Management System and CE certificate. Under only high-quality products can win customers’ praise philosophy, always put the good quality in the first point. The bolt application mainly was for machinery, construction, petroleum and industry and so on. Exported to America, Australia, Brazil, Canada, Russia markets, etc. Standard capabilities: AS. ASME/ANS I. DIN. ISO. JIS ● Diameter capabilities: M6 - M27 ( 1/4” - 1” ) ● Length capabilities: 10mm - 300mm ( 3/8”- 12”) ● Grade capabilities: 4.8. 6.8. 8.8. 10.9 / 2. 5 . 8 . others