Threaded bolt divided into carbon steel bolts and stainless steel bolts according to the material,the bolts are commonly used in different area and mainly have the advantages of easy fastening,such as furniture, construction and etc.The main feature of these combination bolts is that they are equipped with corresponding washers, which is very convenient to use.
Performance grade: carbon steel: grade 4.8/8.8/10.9/12.9, stainless steel A2-50/A4-70/80, etc
Surface treatment:carbon steel surface treatment is generally boiled black, galvanized, non electrolytic zinc sheet coating, thick galvanized vzd and thick galvanized
Zinc plus sealing (zsml), zinc nickel coating silver (znshl), zinc nickel coating black (zhbh)
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