Quick Details Warranty: 3 years Finish: Black Certification: GS Material: Steel, Carbon Steel Measurement system: Metric Application: Healthcare, Food & Beverage, General Industry, Heavy Industry Customized support: ODM Name: Hexagon head screws class: 4.8 8.8 10.9 12.9 Surface: Plain,Black,Zinc,HDG Specification: M5-16 MOQ: 500kg