M4 M16 Carbon steel U type bolt with nut washer Class4.8 grage 8.8 Black Blue U bolt

M4 M16 Carbon steel U type bolt with nut washer Class4.8 grage 8.8 Black Blue U bolt

Product Description:

U-shape is generally used in cargo vehicles, it is used to stabilise the chassis and frame of the vehicle. For example, the steel plate spring is U-bolt to connect.
U bolts are widely used, the main use: construction and installation, mechanical parts connection, vehicles and ships, bridges, tunnels and railways.

Main shapes: semi-circular, square right angle, triangle, oblique triangle, etc.

1. Material properties, density, bending strength, impact toughness, compression strength, modulus of elasticity, tensile strength, temperature resistance, colour according to the use of the environment.
 

2. Materials commonly used are carbon steel Q235A Q345B alloy steel stainless steel and so on. Among the stainless steel materials are 201 304, 321, 304L, 316, 316L.
 

3. National standard of U-bolt: JB/ZQ4321-2006.
 

4.Material
U-bolt according to the material points are carbon steel Q235, Q345 alloy steel, stainless steel 201 304 316, etc., that is, carbon steel and stainless steel.

Applications

U-bolt heat tightening is suitable for what occasions

Thermal tightening is the internal control of the medium temperature requirements of the pipeline bolts, in addition to the construction of the fastening, the need to reach a constant temperature or different temperatures in a process of work and then the fastening. And in normal use, the temperature rises, the bolt is subjected to thermal expansion, the gap increases, the need to complete the sealing from zero by hot tightening operation....

In general, the requirements of the internal temperature > 200 ℃ in the equipment, pipelines, etc., need to bolt fastening heat tightening.

Hebei Wanxin Fastener Manufacturing Co., Ltd, the main production of products are: U bolts, steel bolts, ground bolts, flange, double-headed bolts, highways, railways, underground supporting fasteners, a variety of pre-embedded parts, high-strength bolts, high-strength hexagon, scaffolding, through the wire water-stop screws, high-strength nuts, through the wall wire reinforcing stirrups,, step by step, the top bracket, butyl threads, water-stopping steel plate and so on.

With the growing awareness of environmental protection, the environmental performance of U-shaped bolts has also become a focus of attention. In the production process, the use of environmentally friendly materials and processes to reduce energy consumption and pollutant emissions has become an important development direction of the U-shaped bolt industry. Through the research and development of new environmentally friendly materials and improve production efficiency, U-bolt industry is also to achieve the goal of sustainable development to make a positive contribution.

U-bolt as an important type of fastener, in construction, machinery, automotive and other traditional fields, as well as aerospace, new energy and other emerging fields have a wide range of applications. Its unique structure and performance advantages make it an indispensable part of engineering. In the future, with the continuous progress and innovation of science and technology, the application fields and performance of U-shaped bolts will be further expanded and improved, making greater contributions to engineering construction and social development. Environmental protection and sustainable development will also become an important development direction of the U-shaped bolt industry, to promote the industry to achieve a greener, sustainable development.

What are the advantages of galvanising?
Galvanising is the best way to protect small to large products and structures from corrosion and surface degradation. There are several advantages to applying a galvanised coating to metal parts.

Corrosion Protection: Galvanising provides superior protection to the surface of iron, steel or other metals. The galvanised coating isolates the original part from moisture, making it highly resistant to corrosion.
Low Cost: Galvanising is a relatively inexpensive method of corrosion protection compared to other forms of surface preparation. It does not require expensive equipment or complicated set-ups.
Enhanced Properties: The galvanising process provides a small increase in the strength, toughness, abrasion resistance and other properties of the substrate.
Metal Hygiene: The zinc coating on the surface makes it easy to clean and the smoothness prevents dust deposits.
Longevity: A zinc coating has a life expectancy of almost 20 to 25 years, regardless of the environment to which it is exposed (10 real benefits of galvanised steel).
Easy to repair: It is relatively easy to repair affected areas with zinc-rich paints or other coatings.
Easy inspection: Galvanising can be visually inspected. There are simple ways to check the coating, including destructive thickness testing techniques.
Aesthetically appealing: Galvanising gives metal surfaces an attractive, shiny silver appearance.

What are the disadvantages of galvanising?
The following are the fundamental disadvantages of the galvanising process;

Galvanising is limited to very few metals and alloys such as iron and steel. It is not suitable for some commonly used engineering materials such as aluminium alloys.
It is not effective in very acidic and salty environments.
Zinc coatings can be damaged and lose their effectiveness at high working temperatures.
It provides long term protection against corrosion, but ‘white rust’ can occur. If zinc surfaces are exposed to moisture for a long period of time, they will lose their aesthetic appeal.

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