There are obvious differences in structure and application scenarios between flange bolts and ordinary bolts.
1. Structural Differences
Ordinary Bolt
It consists of a bolt head and a threaded shank. The head is convenient for clamping and tightening, and the threaded shank connects with nuts or threaded holes for fastening.
Flange Bolt
It is designed with an integrated flange plate under the bolt head. The flange enlarges the pressing area, evenly disperses fastening pressure, prevents surface damage of connected parts, and achieves good anti-slip and anti-loosening effect.
2. Application Scenarios
Ordinary Bolt
It features strong versatility, widely used in general mechanical equipment, hardware fittings and conventional assembly connection.
Flange Bolt
It is mainly used for assembly connection of auto parts, rail transit, bridges and heavy machinery. With large bearing area, it is suitable for connections under heavy load and severe vibration conditions.
In short, the main structural difference is the integrated flange plate of flange bolts, which increases pressing area for heavy-load connection. Flange bolts are mostly used for heavy-duty industrial assembly, while ordinary bolts have wider general applications.
Their basic performance is similar except head shape. The following factors shall be considered during selection:
Load Bearing Capacity: Flange bolts have larger contact area and uniform stress distribution, which are preferred for high pressure, heavy load and frequent vibration occasions.
Installation Space: Flange plates occupy more lateral space. Ordinary bolts are more suitable for narrow and limited installation space.
Cost Budget: Flange bolts have complex production process and higher cost. Ordinary bolts are the first choice for low-load projects with cost control requirements.
Surface Protection: The flat flange surface is easier for galvanizing, dacromet coating and other anti-rust treatments, providing better corrosion resistance for outdoor and harsh working environments.
Select suitable bolt types according to actual working conditions. Standard installation and tightening operation shall be implemented to ensure stable connection and safe service.
