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  • Which material&surface treatment are generally applied in fasteners as bolts nuts and metal parts?
    Carbon steel, stainless steel, copper, aluminum are widely used on these parts. Some parts like in sport or medical industry, titanium is applied to meet special requirement. As for surface finish, it varies by the materials, for example Finish for carbon steel: Zinc Plate, Copper Plate, Dacromet etc. Finish for stainless steel: Mirror, Polish, Geomate, Black Oxide etc. Aluminum: Anodizing (Any color base on RAL available) Copper: Polish, Sn Plate etc.
  • How to choose good hardware suppliers in China?
    There’re numerous hardware suppliers in China. Generally, they separates in 3 area, that is Hebei Province, Zhejiang Province and Guangdong Province. Suppliers from Hebei mainly deal with standard parts, Suppliers in Zhejiang deal with both standard and nonstandard parts, and suppliers from Guangdong mainly deal with customized items. To make a conclusion, suppliers from Guangdong like Peak Fasten in ShenZhen provide most high quality parts in China. Zhejiang suppliers are not very patient with clients need special bolt or screws. Hebei has lower quality and poor service foundation. Bailian Hardware has an technique experience of over 15 years with professional staffs to provide every client point to point service. That’s why we are known and leading the customized fasteners&precision parts industry.
  • How to test plate quality and rust-resistance property of the galvanized parts?
    Generally, salt spray test is adopted to test the surface finish quality and anti-corrosion property of galvanized parts. It includes NSS Test, ASS Test, CASS Test etc.