Ningbo OuKaiLuo Hardware Co.,Ltd. |
|
Steel Zinc Plated M4 Knurled Thumb Screws | |
Material | Carbon steel |
Dimension | As customer's requires |
Screw head | knurled head |
Finish | Zinc plated |
Grade | 4.8 |
Features | Good anti-corrosion ability |
Certification | ISO9001:2008, SGS, RoHS, Bureau Veritas |
After-sale service | If there are any quality problems, please contact with us at once |