Custom Hex Bolts - Top Suppliers for Quality Products at Best Prices
Aozhan specializes in manufacturing high-strength hex bolts from premium carbon steel and alloy steel, hardened through heat treatment (Grade 4.8 to 12.9) to deliver exceptional tensile strength and fatigue resistance. Featuring standard hex heads for easy wrench installation and precision threads meeting ISO 898-1 standards, these bolts ensure reliable fastening performance. Available with zinc plating or Dacromet coatings for corrosion protection, they are ideal for permanent connections in steel structures, machinery, and bridge engineering. Our rigorous production control guarantees stable performance even under heavy loads and vibration.
