Below, the casting manufacturer introduces the basic classification of flange bolts
1. Hexagonal head screw bolts with holes will create a split pin hole on the screw of the bolt, which can be threaded through the metal wire hole, making it easier to tighten. Mechanical loosening is used for reliable anti loosening
2. Hexagonal head reamed hole bolts, with reamed hole bolts, can better fix the mutual positions of the connected parts and withstand the shear and compression generated in the transverse direction.

3. Cross groove concave protruding hexagonal head bolt, easy to install and tighten, mainly used for light industries and instruments with less load.
4. Square head bolts have a larger head size and a larger stress surface, making it easy for a wrench to clamp their head. The tightening method is very convenient, or other parts can be relied on to stop rotation.
5. Countersunk bolts with square necks and a stop rotation function are often used in situations where the surface of the connecting parts is required to be flat or smooth.
6. T-shaped groove bolts are suitable for situations where bolts can only be connected from one side of the connected parts. Insert the bolt into the T-groove and rotate it 90 degrees to prevent the bolt from coming out; It can also be used in situations where compact structure is required.
7. The foundation bolt is specially used in the embedded concrete foundation to fix the base of machines and equipment. It is mostly used in the places and tooling where the connection needs to be frequently disassembled.
8. Rigid frame bolts, high-strength bolts used for ball joints, with high strength, mainly used for highways.
The above is the relevant content introduced by casting and processing manufacturers, hoping to be helpful to everyone.