TOYOTA 90105-06349 Flange Bolt

The genuine OEM TOYOTA 90105-06349 flange bolt (BOLT FLANGE) is a premium quality, high-strength fastener engineered specifically to meet the stringent factory standards of Toyota and Lexus vehicles. Thanks to the flanged design, the integrated collar (flange) beneath the bolt head distributes clamping force evenly across the mating surface, eliminating the need for a separate washer.

Technical Specifications and Parameters:

• Manufacturer: TOYOTA (Genuine OEM part)
• Part Number: 90105-06349
• Type: Hex flange bolt (Flange Bolt)
• Thread Size: M6 (metric thread for precise fastening)
• Material: Hardened, high-strength alloy steel
• Surface Treatment: Anti-corrosion protective coating against environmental factors

Application and Function:

Flange bolts are widely utilized in automotive applications where high vibration and mechanical stress present a risk of loosening. The integrated flange prevents surface damage to the clamped components and increases joint stability. Typical applications include brackets for various engine compartment accessories, covers, sensor mountings, and auxiliary body or chassis components.

Signs of Failure or Wear:

• Thread Elongation or Deformation: Thread stretching may occur due to improper tightening torque (over-torquing), resulting in a weakened joint.
• Corrosion: When exposed to moisture and road salt, deterioration of the protective coating can lead to rust formation, making removal difficult or causing bolt breakage.
• Mechanical Damage: Rounding of the bolt head caused by using incorrect tools.

To ensure secure and durable fastening, always replace damaged or over-stretched bolts with new, genuine TOYOTA parts, and tighten using a calibrated torque wrench in accordance with the manufacturer's specified torque values.