TOYOTA 90116-10201 Wheel Hub and Axle Shaft Stud Bolt

The Toyota 90116-10201 genuine (OEM) stud bolt is a premium-quality, high-tensile fastener specifically engineered for critical areas of the vehicle's drivetrain and chassis (such as securing wheel hubs and axle shaft flanges). This genuine part guarantees a perfect fit and maximum safety.

Technical Features and Specifications

• Type: Double-ended stud bolt
• Material: High-tensile, heat-treated steel alloy resistant to dynamic and static mechanical loads.
• Surface Treatment: Specialized corrosion-resistant coating providing protection against the detrimental effects of moisture, mud, and road salt.
• Thread Design: Precision rolled threads to prevent galling and ensure accurate torque application.

Function and Importance of the Stud Bolt

The fundamental function of stud bolts is to maintain a constant and uniform clamping force between connecting components. Due to continuous vibration and extreme physical stress in the chassis and axle shaft environment, the quality of fasteners directly impacts driving safety. Genuine Toyota stud bolts undergo stringent quality control processes, ensuring original factory load-bearing capacity.

Signs of Wear and Failure

Stud bolts should be inspected or replaced in the following circumstances:

• Thread damage or elongation: Often the result of incorrect torque tightening (over-torquing).
• Severe corrosion: Rust weakens the structural integrity of the material, potentially leading to fracture.
• Visible deformation or cracking: Any physical damage requires immediate replacement of the part to prevent safety hazards.