What scenarios can hexagon head bolts be used in?

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What scenarios can hexagon head bolts be used in?

2025-03-03

Hexagon Head Bolt is a commonly used fastener in mechanical connection. Because of its hexagonal head, it is easy to tighten with a wrench or socket tool. It has the characteristics of strong bearing capacity, good stability and easy installation. The following are its typical application scenarios:

1. Mechanical manufacturing and equipment assembly
Heavy machinery: Steel structure connection of equipment such as excavators and cranes, which needs to withstand high loads and vibrations.

Machine tools and production lines: Fix transmission parts, molds or frames, and use the torsion resistance of the hexagonal head to prevent loosening.

Pump valve pipeline: Hexagonal head bolts are often used to seal high-pressure pipelines in flange connections.

2. Buildings and steel structures
Steel structure bridges/buildings: Used for the connection of beams, columns, and truss nodes, with anti-loosening gaskets to enhance seismic resistance.

Curtain wall installation: Fix metal frames or glass support structures, which require anti-corrosion treatment (such as galvanizing, stainless steel materials).

3. Automobile and Transportation
Engine/Chassis: Fastening key parts such as cylinder block and suspension system requires high-strength bolts (such as 8.8 and 12.9).

Railway: Rail fasteners and carriage connectors need to be fatigue-resistant and rust-proof.

4. Energy and Power Equipment
Wind Turbines: Bolts of towers and blade bearings need to withstand wind loads.

Substation Structure: Rust-proof coated bolts are commonly used in the installation of high-voltage cabinets and transformers.

5. Home Appliances and Electronic Products
Large Home Appliances: For example, ordinary carbon steel bolts are often used to fix the inner drum of washing machines and air conditioner brackets.

Equipment Housing: Combination bolts (with washers) may be used for parts that need to be frequently disassembled.

6. Aerospace and Military Industry
Special Alloy Bolts: Titanium alloy or high-strength steel hexagonal head bolts are used for aircraft fuselages and engines, and must strictly meet tensile and temperature resistance standards.

7. Agriculture and outdoor facilities
Agricultural machinery: Combine harvesters, tractors and other parts that are susceptible to vibration need to be checked regularly for tightening status.

Fences/billboards: Hot-dip galvanized or stainless steel bolts are often used for rust prevention in outdoor environments.