TOYOTA 91671-80616 Flange Bolt with Washer

The Toyota 91671-80616 genuine OEM flange bolt with integrated washer is a premium-quality fastener specifically engineered for the secure mounting of vehicle structural and mechanical assemblies. Genuine Toyota parts guarantee precise fitment, tensile strength conforming to factory specifications, and a long service life.

Technical Specifications and Benefits:

• Type: Hex flange bolt with integrated washer (Bolt, Flange w/Washer).
• Material Quality: High-strength, heat-treated steel alloy resistant to heavy mechanical loads and shear forces.
• Surface Protection: Specialized corrosion-resistant coating that shields the bolt from moisture, mud, and road salt oxidation.
• Integrated Washer: Ensures uniform clamping force distribution across the fastening surface, prevents material indentation, and improves resistance to vibration-induced loosening.

Application and Operation:

Flange bolts are widely utilized in automotive applications across critical areas such as the engine compartment, chassis and suspension components, auxiliary equipment brackets, and body mounting points. The captive integrated washer eliminates the need for separate loose washers, allowing for faster, safer, and more reliable assembly.

Signs of Failure or Wear:

• Corrosion: Severe rust formation that weakens the bolt structure and hinders removal.
• Thread Damage: Thread stretching or stripping resulting from improper tightening torque (overtorquing).
• Mechanical Damage: Rounding off or deformation of the bolt head caused by the use of incorrect tools.

To ensure safe operation, always replace damaged, stretched, or heavily corroded fasteners with new, genuine Toyota hardware.