Bolts

Expansion bolt:


                        

                        
  • Expansion bolt
  • Expansion bolt
  • Expansion bolt
  • Expansion bolt
  • Expansion bolt
  • Expansion bolt

Expansion bolts are a type of fastener used for attaching objects to concrete, brick, or other materials that cannot be easily threaded. They consist of an outer sleeve, a cone-shaped insert, and a threaded rod that is inserted into the insert. When the nut is tightened, the cone-shaped insert is pulled through the outer sleeve, causing it to expand and anchor the bolt securely in place. Expansion bolts are commonly used in construction, industrial, and DIY projects where a strong and permanent anchor is required.

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Standard

FOB Price: US $0.5 - 9,999 / Piece

Supply Ability: 10000 ton per Month

Surface treatment: Plain, Zinc Plated(ZP), GALVANIZED, HDG, Hot dip galvanized, Dacromet

Material: Carbon Steel / Alloy Steel / Stainless Steel / Brass / Copper

Standard: DIN / GB / UNC / BSW /JIS etc.

Certificate: ISO9001 ISO14001 ISO45001 SGS

Grade: 4.8 8.8 10.9 12.9 A2-70 A4-70 A4-80 etc.

What are they used for

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316 Stainless steel Expansion bolt                             1/2" x 5-1/2"Zinc plated Expansion bolt                      Yellow zinc Expansion bolt M10x70mm         

Expansion bolts are widely used in the construction industry for various applications, such as in the installation of steel columns, suspended ceilings, and heavy equipment. They are also commonly used in the manufacturing industry for the installation of machinery and equipment, as well as in the automotive industry for the assembly of vehicle parts.

Expansion bolts manufacturers play a significant role in meeting the demands of these industries by producing high-quality expansion bolts that meet specific requirements for strength, durability, and corrosion resistance. These manufacturers use advanced production techniques and materials to ensure that their products can withstand the harsh conditions they may be exposed to in various applications.

Expansion bolt

Manufacturing Process

The production process of expansion bolts involves several steps. First, raw materials such as steel, zinc, and carbon are obtained. The raw materials are then heated and mixed to create a steel alloy. The steel alloy is poured into casting molds and allowed to cool and solidify. The solidified metal is then trimmed and shaped into the desired dimensions.


Next, the bolts are formed using a special machine that cuts and shapes the metal. After the bolts are formed, they are heat-treated to harden the metal and improve its strength. The bolts are then cleaned and coated with zinc to prevent rusting and improve durability.


Finally, the expansion mechanism is added to the bolt. This involves placing a sleeve around the bolt and inserting a tapered cone. As the bolt is tightened, the tapered cone is forced into the sleeve, causing it to expand and create a strong grip in the substrate material. The finished expansion bolts are then packaged and shipped to customers.

Expansion bolt

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