Leave Your Message
China Suppliers Factory Direct DIN 912 Hexagonal Bolts - Cup Head, Half Round, Flat Head, Various Grades and Materials
Hot Products
Products Categories
Featured Products
Refined carbon steel stainless steel U-bolts-1

Refined carbon steel stainless steel U-bolts-1
Refined carbon steel stainless steel U-bolts

Refined carbon steel stainless steel U-bolts
Refined hot-dip galvanized bolts

Refined hot-dip galvanized bolts
High strength precision machined T-bolts with superior performance

High strength precision machined T-bolts with superior performance
DIN933 304 A2-70 hexagonal bolt

DIN933 304 A2-70 hexagonal bolt
DIN931 304 A2-70 hexagonal bolt

DIN931 304 A2-70 hexagonal bolt
DIN 6921 Refined Flange Bolts for Enhanced Performance and Durability

DIN 6921 Refined Flange Bolts for Enhanced Performance and Durability
DIN 913 914 915 916 Precision High Strength Tightening Bolt

DIN 913 914 915 916 Precision High Strength Tightening Bolt
DIN 912 refined hexagonal bolt cup head half round head flat head

DIN 912 refined hexagonal bolt cup head half round head flat head
DIN 603 refined carriage bolts

DIN 603 refined carriage bolts
0102030405
2.jpg
3.jpg
5.jpg
6.jpg
4.jpg
1.jpg
7.jpg
10.jpg
13.jpg
9.jpg
8.jpg
11.jpg
12.jpg
14.jpg

China Suppliers Factory Direct DIN 912 Hexagonal Bolts - Cup Head, Half Round, Flat Head, Various Grades and Materials

Grade: 4.8, 8.8, 10.9, 12.9 | Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo | Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc.

,

As a leading supplier of internal hexagonal screws in China, our products are widely used in various machinery applications. These screws offer several advantages, including ease of tightening and disassembly, along with reduced slipping risk. Our internal hexagonal wrenches feature a unique design, typically bent at a 90° angle with one long end and one short end, enabling users to effectively tighten screws with less effort. The longer end, designed with a rounded head and a flat head, allows for easy insertion and disassembly of screws.

,

While external hexagonal wrenches are produced at a lower cost, they often cannot replace internal hexagonal wrenches in precision-dependent applications. Internal hexagonal screws are favored in high-precision machinery, whereas external hexagonal screws are used more commonly in machines with lower cost and power requirements. As a reputable factory in China, we ensure that our products are manufactured to meet the highest quality standards, catering to the diverse needs of our clients in the machinery sector.

    Contact us
    Product Detail

    Characteristic

    PRODUCTS
    XQ (1)1nv
    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

    USE

    1. Excellent Tightening and 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.
    XQ (2)mpi
    XQ (3)tmq

    Frequently Asked Questions

    What materials are commonly used to manufacture hex screws?
    Q235 wire is commonly used for hex screws, as well as iron screw wire. The choice of wire material directly determines the final characteristics and performance of the hex screws.
    How does the hardness of iron hex screws compare to stainless steel screws?
    Stainless steel screws naturally possess relatively high hardness. In contrast, iron is naturally softer. To achieve the necessary hardness for iron screws, they must undergo heat treatment to harden them.
    What precautions should be taken during the heat treatment of iron screws?
    During heat treatment, the screws must be heated uniformly. Uneven heating will fail to meet hardness requirements and make the screws prone to bending, which significantly increases production costs.
    What should I avoid when using hexagonal screws?
    You should try to avoid letting the screw head slip during installation or removal. If the head slips, it will become extremely difficult to remove the screw in the future.
    Why are internal hexagonal bolts highly resistant to loosening?
    They offer an excellent tightening effect due to their thread design, preventing loosening from long-term equipment vibration. They can also be paired with locking washers or locking agents for extra security.
    In which industries are hexagonal bolts most commonly used?
    Hexagonal bolts are widely utilized across various fields, including the automotive industry, aerospace, mechanical manufacturing, and construction engineering.