China OEM All Bolts Manufacturer – OEM ODM fastener customization service – RAISING-Elec
China OEM All Bolts Manufacturer – OEM ODM fastener customization service – RAISING-Elec Detail:
Bolt connecting for steel structure is a connection method that connects more than two steel structure parts or components into one by bolts. Bolt connection is the simplest connection method in component pre assembly and structural installation.
Bolted connection is the earliest used in metal structure installation. In the late 1930s, bolt connection was gradually replaced by rivet connection, which was only used as a temporary fixing measure in component assembly. High strength bolt connection method appeared in the 1950s. High strength bolts are made of medium carbon steel or medium carbon alloy steel, and their strength is 2 ~ 3 times higher than that of ordinary bolts. High strength bolt connection has the advantages of convenient construction, safety and reliability. It has been applied in the manufacturing and installation of steel structures in some metallurgical plants since the 1960s.
Bolt specifications commonly used in steel structures include M12, M16, M20, M24 and M30. M is the bolt symbol and the number is the nominal diameter.
Bolts are divided into 10 grades according to performance grades: 3.6, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9 and 12.9. Bolts above grade 8.8 are made of low-carbon alloy steel or medium carbon steel and are generally referred to as high-strength bolts after heat treatment (quenching and tempering), and bolts below grade 8.8 (excluding grade 8.8, refined ordinary bolts also include grade 8.8) are generally referred to as ordinary bolts. The following table shows the performance grade and mechanical properties of bolts.
● Wire-EDM : 6 Sets
● Brand: Seibu & Sodick
● Capability: Roughness Ra<0.12 / Tolerance +/-0.001mm
● Profile Grinder: 2 Sets
● Brand: WAIDA
● Capability: Roughness <0.05 / Tolerance +/-0.001
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Our primary target will be to provide our clients a serious and responsible small business relationship, supplying personalized attention to all of them for China OEM All Bolts Manufacturer – OEM ODM fastener customization service – RAISING-Elec , The product will supply to all over the world, such as: Brunei, Kyrgyzstan, Iran, Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact me. We are looking forward to forming successful business relationship with new clients around the world.
By Nicola from Mecca - 2018.04.25 16:46
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
By Alexia from Buenos Aires - 2017.12.19 11:10
