China OEM Wholesale metal parts Manufacturers – OEM ODM service for fastener products – RAISING-Elec

Short Description:

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 connect...

Send email to us

Product Detail

Product Tags

Feedback (2)

We regularly perform our spirit of ''Innovation bringing progress, Highly-quality making certain subsistence, Administration marketing benefit, Credit score attracting customers for Precision Metal Stamping Customization, Deep Draw Metal Stamping, Metal Stamping Manufacturers, We have a big inventory to fulfill our customer's requires and needs.

China OEM Wholesale metal parts Manufacturers – OEM ODM service for fastener products – RAISING-Elec Detail:

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.

fastener 21
fastener 22
fastener 27

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.

fastener 19
fastener 26
fastener 28

● 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

Product detail pictures:

Related Product Guide:

"Control the standard by the details, show the power by quality". Our firm has strived to establish a extremely efficient and stable employees crew and explored an effective excellent command method for China OEM Wholesale metal parts Manufacturers – OEM ODM service for fastener products – RAISING-Elec , The product will supply to all over the world, such as: Thailand, Brazil, United States, The working experience in the field has helped us forged a strong relations with customers and partners both in domestic and international market. For years, our products have been exported to more than 15 countries in the world and have been widely used by customers.

Blind Rivet

China Mould Manufacturers

Fastener Bolt

Hardware Manufacture

Supporting Service For Metal

We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!