SUBCON EEC Digital Showroom Exhibitors | Product Highlights | MY LIST ANSCO (THAILAND) CO., LTD. Country/Region: Hall No.: Hall 1 Stand No.: B24 Category: Forging, Machining ADD TO MY LIST More about this exhibitor Visit website Hexagon Flange Bolt Commonly known as flange bolt. As the name implies, it is a hexagon bolt with a flange (flange) on the head. The feature is that it is not necessary to install a washer (cost reduction), and you can prevent forgetting to install a washer.