Products Description
Hexagon Bolt
Hebei Sanwei Fasteners Co., Ltd.
Definition and Structure
A hex bolt, also known as a hexagonal bolt, is a common fastener widely used in various mechanical and construction applications. It consists of a cylindrical shaft with a hexagonal head at one end and external threads along the shaft. The hexagonal head provides a convenient surface for gripping and turning the bolt with tools like wrenches.
Working Principle
Hex bolts work by being inserted through holes in the objects to be joined and then tightened with a nut. As the nut is rotated, it pulls the bolt through the holes, creating a clamping force that holds the objects together. The threads on the bolt and nut ensure a secure and adjustable connection.
Applications
Hex bolts are used in a multitude of applications. In the automotive industry, they are used to assemble engine components, chassis parts, and body panels. In construction, they are employed to connect steel beams, wooden structures, and various building elements. They are also crucial in machinery manufacturing, where they hold together different parts of the machines, ensuring their stability and proper functioning.
Products Parameter
|
Name |
Hexagonal bolts |
|
Material |
carbon steel,Stainless Steel and alloy steel,etc. |
|
Standard |
DIN 933 DIN931 |
|
Certificate |
ISO 4017 ISO4014 |
|
Grade |
Grade 4.8, Grade 6.8, Grade 8.8 , Grade 10.9 |
|
Nominal diameter |
M4-M36 |
|
Surface treatment |
PLAIN BLACK ZINC |
Product feature and application
Product feature
Connection fastening
Hexagonal bolts utilize the thread bite to generate strong axial tension, which can tightly fix the connected parts to ensure a solid connection, and can withstand large tensile force and shear force to ensure structural safety.
01
Easy operation
Hexagonal bolts can be easily tightened or loosened by using conventional tools such as wrenches, and the installation and disassembly process is simple and fast, without professional and complex equipment and technology, which can effectively save time and labor costs.
02
Various specifications
A variety of sizes, lengths and strength levels are available, according to different application requirements, precise matching connection requirements, a wide range of applications.
03
Simple structure
Composed of hexagonal head and threaded rod, regular shape, easy processing and manufacturing, easy to control the quality, low production costs, and can realize mass production and supply.
04
Reliable anti-loosening
ith spring washers, anti-loosening nuts and other accessories, or special thread processing technology, can effectively prevent loosening under vibration, impact and other working conditions, to ensure the long-term stability of the connection.
05
Product application
Mechanical manufacturing
Used in the assembly of all kinds of mechanical equipment, such as engines, machine tools, reducers, etc., connecting different parts to ensure the normal operation of the equipment.
01
Automobile industry
Widely used in automobile body, chassis, engine and other parts, connecting body frame, suspension system, engine block and other parts to ensure the structural strength and safety of the automobile.
02
Construction field
Used in steel structure building to connect steel beams and columns, as well as wood structure building to connect wood components, can also be used to fix the building decoration components, pipeline brackets and so on.
03
Electronic
Used in the assembly of shells and fixing of circuit boards of electronic equipments, etc. Because of its various specifications, it can meet the connection requirements of miniaturization and precision of electronic equipments.
04
Daily necessitie
Furniture, bicycles, fitness equipment and other daily necessities can not be assembled without hexagonal bolts, to provide a reliable connection to ensure the use of product performance and safety.
05
Prodection Details
Different materials and features
Here you can learn more and choose the product that suits you best!
Carbon steel
Material: Iron-carbon alloy with a carbon content between 0.0218% and 2.11%, often added with elements such as manganese and silicon.
Characteristics: High strength and hardness, capable of withstanding large tensile and compressive forces, good toughness, excellent machinability, and relatively low cost, making it widely used. However, it is prone to rust in special environments such as humid or acidic/alkaline corrosive conditions.
Stainless Steel
Material: Alloy steel containing elements like chromium and nickel, with common grades such as SS201, SS304, SS316, and SS316L.
Characteristics: Excellent corrosion resistance, oxidation resistance, and acid resistance, maintaining good performance in harsh environments. It has an attractive appearance and requires no additional anti-corrosion treatment. However, stainless steel bolts have slightly lower strength than carbon steel bolts and higher costs.
Alloy Steel
Material: Carbon steel base with one or more alloying elements added, such as chromium, molybdenum, and vanadium.
Characteristics: High strength, high toughness, and good wear resistance, able to withstand higher loads and more complex working conditions. They also have better high-temperature resistance and fatigue resistance, but come at a relatively higher price.
Copper and Copper Alloys
Material: Mainly pure copper, brass, bronze, etc.
Characteristics: Good electrical and thermal conductivity, corrosion resistance, and plasticity, easy to process and form. Copper hex bolts have unique advantages in special applications such as electrical equipment and food processing equipment. However, copper has relatively low strength and high cost.
Surface Finishing
Here you can learn more and choose the product that suits you best!
Plain
Maintain the original characteristics: no additional surface treatment, retaining the original strength, hardness and other mechanical properties of alloy steel, the material characteristics are fully displayed.
Natural appearance: presents the original metallic color and texture of alloy steel, simple and natural, suitable for applications that do not require high appearance and need to reflect the essence of the material.
Easy to corrode: directly exposed to the air, easy to react with oxygen, moisture, etc. and rust, poor corrosion resistance, short service life in harsh environments.
Black
Enhanced corrosion resistance: A black oxide film is formed on the surface through chemical treatment, which can isolate air and moisture to a certain extent and slow down the corrosion rate.
Unique appearance: the surface is black, uniform color, with a unique texture, increasing the aesthetics of the product, commonly used in mechanical parts that have certain requirements on appearance.
Lower cost: the blackening process is relatively simple, the cost is not high, and it can improve the protective performance and appearance quality of bolts to a certain extent, with high cost performance.
Electro-galvanizing
Better protective performance: the zinc layer is uniform and dense, which can effectively block the external corrosive medium from contacting with the bolt substrate, and has a good protective effect on the iron and steel substrate.
Beautiful appearance: the surface is smooth, flat, silver-white or bluish-white, with good decorative properties, which can satisfy some occasions with higher requirements on appearance quality.
Controllable thickness: The thickness of the zinc layer can be precisely controlled by controlling the parameters of the electroplating process to meet different protection requirements.
Hot-dip galvanizing
Strong corrosion resistance: The thickness of the zinc layer is large, usually between tens and hundreds of microns, which provides strong corrosion resistance and is suitable for harsh environments such as outdoor, humid, acid and alkali environments.
Long service life: Because the zinc layer is thick and firmly combined with the substrate, it can effectively protect the bolt substrate for a long period of time, which greatly prolongs the service life of the bolt.
Good workmanship: hot-dip galvanizing is carried out at high temperatures, the zinc liquid can fully penetrate into all parts of the bolt, including threads, crevices, etc.
Bolt Grade
Here you can learn more and choose the product that suits you best!
Grade 4.8
Grade 4.8 is mostly made of low carbon steel, which is suitable for occasions with low strength requirements, such as ordinary furniture assembly, general mechanical connection, and is also commonly used in some non-load-bearing structural parts in buildings.
Grade 8.8
Grade 8.8 multi-purpose medium carbon steel and after heat treatment and tempering, often used in automobile manufacturing, key parts of machinery and construction industry has a certain strength of the steel structure connection node.
Grade 10.9
Grade 10.9 is often used for steel structure connection in bridge construction, which can withstand large loads; It is also more common in the connection of key parts of large machinery and equipment, such as mining machinery, port cranes, etc., to ensure the reliability of equipment under high intensity working conditions.
Grade 12.9
Grade 12.9 is mainly used in the aerospace field, such as the connection of key components such as aircraft engines and landing gear, requiring bolts and nuts to have extremely high strength and reliability; Grade 12.9 is also used in some high-end precision machinery manufacturing to ensure the high precision and stability of the equipment.
(Mainly show carbon steel bolt grade)
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