Types of Hexagon Bolts
2022-03-02
Types of Hexagon Bolts
Hexagon bolts are actually called in many ways. For example, they can be called external hexagon screws, and they can be called external hexagon screws. It can also be called external hexagon bolt.
1. Ordinary bolts are divided into three types: a, b, and c. The first two are refined bolts, which are used less frequently. Generally speaking, ordinary bolts refer to C-class ordinary bolts.
2. In some temporary connections and connections to be dismantled, C-class ordinary bolts are commonly used. Common bolts commonly used in building structures are m16, m20, and m24. Some mechanical industry rough bolts may have large diameters and special uses.
High-strength bolts:
3. The material of high-strength bolts is different from ordinary bolts. High-strength bolts are generally used for permanent connections. Commonly used are m16~m30. Oversized high-strength bolts have unstable performance and should be used with caution.
4. The bolted connection of the main components of the building structure is generally connected by high-strength bolts.
5. The high-strength bolts delivered from the factory are not divided into pressure type or friction type.
6. What is the difference between the friction type high-strength outer hexagon bolt and the pressure-bearing high-strength bolt, in fact, there is a difference in the design calculation method:
(1) Friction type high-strength bolts take the slippage between the plates as the limit state of the bearing capacity.
(2) For the pressure-bearing high-strength bolts, the slippage between the plates is regarded as the normal service limit state, and the connection failure is regarded as the bearing capacity limit state.
7. Friction type high-strength bolts cannot give full play to the potential of bolts. In practical applications, friction-type high-strength bolts should be used for very important structures or structures bearing dynamic loads, especially when the load causes reverse stress. At this time, the unused bolt potential can be used as a safety reserve. In other places, pressure-bearing high-strength bolts should be used to reduce the cost.
Hexagon bolts are actually called in many ways. For example, they can be called external hexagon screws, and they can be called external hexagon screws. It can also be called external hexagon bolt.
1. Ordinary bolts are divided into three types: a, b, and c. The first two are refined bolts, which are used less frequently. Generally speaking, ordinary bolts refer to C-class ordinary bolts.
2. In some temporary connections and connections to be dismantled, C-class ordinary bolts are commonly used. Common bolts commonly used in building structures are m16, m20, and m24. Some mechanical industry rough bolts may have large diameters and special uses.
High-strength bolts:
3. The material of high-strength bolts is different from ordinary bolts. High-strength bolts are generally used for permanent connections. Commonly used are m16~m30. Oversized high-strength bolts have unstable performance and should be used with caution.
4. The bolted connection of the main components of the building structure is generally connected by high-strength bolts.
5. The high-strength bolts delivered from the factory are not divided into pressure type or friction type.
6. What is the difference between the friction type high-strength outer hexagon bolt and the pressure-bearing high-strength bolt, in fact, there is a difference in the design calculation method:
(1) Friction type high-strength bolts take the slippage between the plates as the limit state of the bearing capacity.
(2) For the pressure-bearing high-strength bolts, the slippage between the plates is regarded as the normal service limit state, and the connection failure is regarded as the bearing capacity limit state.
7. Friction type high-strength bolts cannot give full play to the potential of bolts. In practical applications, friction-type high-strength bolts should be used for very important structures or structures bearing dynamic loads, especially when the load causes reverse stress. At this time, the unused bolt potential can be used as a safety reserve. In other places, pressure-bearing high-strength bolts should be used to reduce the cost.
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