DIN 912 Hexagonal Bolt Types - Cup Head, Half Round & Flat Head | China Suppliers & Factory
Characteristic
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Q235 wire is commonly used for hex screws, and of course, iron screw wire is also used. The wire used for these screws can determine some of the characteristics of hex screws.
The first one is that the hardness of stainless steel screws is relatively high, but if it is made of iron, the hardness is significantly worse, which is related to the wire of the iron itself. The texture of iron itself belongs to a relatively soft category, which cannot be compared to stainless steel wire. However, in order to achieve the required hardness for iron screws, heat treatment is generally used to harden them. During the heat treatment process, it is necessary to ensure that the screws are uniformly heated. Otherwise, not only will the hardness of the screws not meet the requirements, but it will also make them easy to bend, greatly increasing the production cost of hexagonal screws. After heat treatment, it is possible to increase the hardness of iron hexagonal screws, but due to wire issues, it is still not possible to compare the quality with stainless steel wire.
One thing to note for hex screws is to try not to let the screw head slip during use, otherwise it will be difficult to remove the screw in the future.
How to use bolts
USE1. Excellent Tightening & Anti-Loosening
After the installation of the internal hexagonal bolt, the tightening effect is very good due to the tightening of the thread, and there will be no loosening of the bolt, which can effectively avoid the loosening problem caused by long-term vibration and vibration of mechanical equipment. At the same time, hexagonal bolts can also be used with locking washers, locking agents, and other auxiliary measures to prevent loosening, resulting in higher reliability.
2. Easy to Install
During the installation process of the internal hexagonal bolt, only the internal hexagonal wrench is needed for operation, which is simple and convenient, reducing manual operation time and cost. Compared with other bolts, hexagonal bolts are less prone to damage during installation, can be reused, and have a longer service life.
3. Wide Applicability
The biggest advantage of hexagonal bolts is that they have a wide range of applications. It can be applied to various industries and fields, including the automotive industry, aerospace, mechanical manufacturing, construction engineering, etc. During the manufacturing, installation, and maintenance processes, hexagonal bolts have also demonstrated excellent performance and reliability.
In summary, as one of the commonly used fasteners in mechanical equipment, internal hexagonal bolts have the advantages of high strength, good anti loosening effect, easy installation, and wide applicability, making them a very reliable fastener.
Frequently Asked Questions
FAQWhat materials are commonly used to manufacture hex screws?
Hex screws are commonly manufactured using Q235 wire, iron screw wire, or stainless steel wire. The choice of wire material directly affects the hardness and overall characteristics of the hex screws.
How does the hardness of iron hex screws compare to stainless steel screws?
Stainless steel screws naturally possess a higher hardness. Iron screws are made from a softer raw material and require additional heat treatment to achieve the necessary hardness, though they still generally cannot match the quality of stainless steel wire.
Why is uniform heating crucial during the heat treatment of iron screws?
Uniform heating during heat treatment ensures the screws reach the required hardness level. Uneven heating can fail to meet hardness standards and cause the screws to bend easily, which significantly increases production costs.
What precautions should be taken when using hex screws?
It is important to avoid letting the hex wrench slip inside the screw head during installation or removal. Slipping can strip the socket, making it extremely difficult to remove or tighten the screw in the future.
What makes internal hexagonal bolts highly resistant to loosening?
Internal hexagonal bolts provide high thread tightening performance, preventing loosening from long-term vibration in mechanical equipment. They can also be combined with locking washers or locking agents for enhanced reliability.
What industries benefit most from using hexagonal bolts?
Due to their strength and ease of installation, hexagonal bolts are widely used in automotive manufacturing, aerospace, mechanical manufacturing, construction engineering, and equipment maintenance.