Hot-Dip Galvanized Half-Threaded Hexagonal Bolt Overview

Hot-dip galvanized half-threaded hexagonal bolt is a hexagonal head bolt with a hot-dip galvanized surface and a half-threaded threaded part. It is characterized by excellent corrosion resistance and strength and is widely used in outdoor and harsh environments.

Hot-dip galvanized half-threaded hexagonal bolt is a fastener that meets international or national standards (such as DIN 931). The bolt is made of high-strength steel and is covered with a uniform and dense zinc layer on the surface after hot-dip galvanizing to enhance corrosion resistance. Its design includes:

• Hexagonal head: convenient for tightening or disassembling with tools such as wrenches.
• Half-thread: part of the smooth rod design is suitable for high-strength connection.

Application of Hot Dip Galvanized Half-thread Hexagon Bolt

Hot-dip galvanized half-threaded hexagonal bolt is particularly suitable for use in harsh environments and high-strength demand scenarios due to its strong corrosion resistance, including:

• Construction industry: fixing key components in projects such as bridges, steel structures, and highway guardrails.
• Power facilities: fixing outdoor power equipment such as poles and towers.
• Shipbuilding and marine engineering: Suitable for steel structure connections in docks, ports and marine environments.
• Heavy industrial equipment: High-strength connections for heavy industrial equipment such as mining equipment and petrochemical plants.
• Agriculture and infrastructure: Agricultural greenhouse racks, water pipelines and large sheds.

Feature of Hot Dip Galvanized Half-thread Hexagon Bolt

Advantages

1. Excellent corrosion resistance
   • The hot-dip galvanized layer can resist long-term exposure to moisture, rain and salt spray in outdoor environments, and its service life can reach decades.
2. Strength and stability
   • The semi-threaded design ensures a tight connection while the smooth shaft provides better tensile strength.
3. Economy
   • The hot-dip galvanizing treatment is moderately expensive and more cost-effective than other anti-corrosion processes (such as stainless steel).
4. Environmental protection
   • The hot-dip galvanizing layer is non-toxic and harmless, and has little impact on the environment.

Limitations

• Rough appearance: Compared with electrogalvanizing, the surface roughness of hot-dip galvanized bolts is slightly higher.
• Reduced thread accuracy: The zinc coating may cause the thread size to increase slightly, so special attention should be paid to the selection of matching nuts.