Basic classification of flange bolts 1. Hexagon head sc […]
Basic classification of flange bolts
1. Hexagon head screw with hole bolt
The cotter pin hole is made through the wire hole on the screw, and it is mechanically relaxed to prevent loosening and reliable
2. Hexagon head bolts
Bolts with reaming holes can accurately fix the relative position of the connected parts, and can withstand the shear and squeeze generated in the lateral direction
3. Cross recessed recessed hexagon bolts
Easy to install and tighten, mainly used for light industry and instruments with small load
4. Square head bolts
The square head has a larger size and a larger stress surface, which is convenient for the wrench to catch its head or rely on other parts to stop the rotation. It can also be used in parts with T-slots to adjust the bolt position. Class C square head bolts are often used on rough structures
5. Countersunk head bolts
The square neck or tenon has anti-rotation effect, and is mostly used in the occasions where the surface of the connected parts needs to be flat or smooth.
6. T-slot bolt
T-slot bolts are suitable for bolts that can only be connected from one side of the connected parts. Insert the bolt from the T-slot and turn it by 90 degrees, so that the bolt can not be taken out; it can also be used in the occasion where the structure requires compact.
7. Anchor bolts are specially used for pre-buried concrete foundations, and are used for fixing the bases of machines and equipment. Joint bolts are mostly used in places and tools that need to be frequently disconnected.
8. High-strength bolts for ball joints of rigid grid bolts
High strength, mainly used for highway and railway bridges, industrial and civil buildings, towers, cranes.