Bowl Washer Standards And Functions

Product Introduction: Bowl washers (also called concave washers or bowl-shaped washers) are a special shape of washers, mainly used to enhance the stability and tightness of bolted connections. Its international standards include ISO 7091:2004 and ASTM F436, and domestic standards are GB/T 97220.2 and GB/T 9712.2004. Common materials for bowl washers include carbon steel, stainless steel and alloy steel, and the surface treatment methods include nickel plating, chrome plating, etc., which are suitable for a variety of industrial fields, such as machinery, electronics and decoration industries.