Ningbo Haixin is the main supplier and exporter in China for ISO4017 hex bolts. Our factory can produce full sizes of ISO4017 hex bolts by both cold forging and hot forging processes. Ningbo Haixin is one of the first fastener factories in China to obtain CE certificates. We got CE EN15048 certs for our ISO4017 hex bolts assemblies in 2007. With more new equipment coming and upgrading internally, our factory is fully capable of providing ISO4017 hex bolts with better quality, faster delivery and much more competitive price.
Standard |
Class |
Diameter |
Surface |
ISO4017 |
Class 8.8 |
M12-M36 |
Plain |
ISO4014 |
Class 10.9 |
|
Zinc Blue |
DIN931 |
Class 12.9 |
|
HDG |
DIN933 |
|
|
flZnLnc |