ANSI/ASME B18.2.1 Hexagon Head Bolt

ANSI/ASME B18.2.1 automotive hexagonal bolts comply with the American National Standards Institute (ANSI) and the American Society of Mechanical Engineers (ASME) B18.2.1 standard. The bolts are designed with a standard hexagonal head, have excellent mechanical properties and reliable locking capabilities, and are used in the automotive manufacturing field, including the fastening of engines, chassis systems and structural parts to ensure the safety and stability of vehicle assembly.

The bolts are made of high-strength alloy steel and undergo a rigorous heat treatment process to improve tensile strength and fatigue life to meet the automotive industry's requirements for high-load and high-vibration conditions. In addition, its threads comply with the unified thread standard (UNC/UNF), and can provide surface treatments such as galvanizing, electroplating or Dacromet according to different usage environments to enhance corrosion resistance and extend service life.

Key Advantages for Your Applications:

• Compliance with ANSI/ASME B18.2.1 Standards: Ensures dimensional accuracy, material properties, and performance reliability.
• High-Strength Alloy Steel Construction: Provides exceptional tensile strength and fatigue life for demanding automotive applications.
• Rigorous Heat Treatment: Enhances durability and resistance to high loads and vibrations.
• Standard Hexagonal Head: Facilitates easy and secure installation with common tools.
• Unified Thread Standard (UNC/UNF): Ensures compatibility with existing automotive hardware.
• Multiple Surface Treatment Options: Offers enhanced corrosion resistance for various operating environments.
• Ensures Safety and Stability: Provides reliable fastening for critical automotive components.

Ideal for:

• Automotive engine assembly
• Chassis frame construction
• Suspension system mounting
• Steering component fastening
• Body panel attachment
• Securing structural members
• High-stress and high-vibration environments
• Applications requiring specific corrosion resistance