TOYOTA 91619-61245 Bolt with Washer

The Toyota 91619-61245 is a genuine (OEM) bolt with an integrated washer, specifically engineered for the secure fastening of structural and mechanical components in Toyota and Lexus vehicles. Genuine parts ensure an accurate fit, specified tensile strength, and long service life, minimizing the risk of loosening or thread damage.

Function and Importance

Bolts with integrated washers play a critical role at assembly points. The washer evenly distributes the clamping load across the mating surfaces, preventing deformation of contact materials and reducing the risk of spontaneous loosening caused by vibration. They are especially vital in metal-to-metal and metal-to-plastic joints.

Technical Specifications

• Material: High-strength hardened steel alloy for maximum tensile load capacity.
• Surface Finish: Specialized anti-corrosion coating providing protection against moisture, dirt, and road salts.
• Design: Hex head bolt with an integrated captive washer, facilitating assembly even in hard-to-reach areas.
• Thread: Precision metric thread to accurately achieve factory torque specifications.

Signs of Wear and Failure

• Heavy corrosion or rusting on the bolt head or threaded section.
• Deformed, stretched, or stripped threads resulting from over-torquing.
• Rounded bolt head corners caused by the use of improper tools.
• Vibration or rattling of secured components due to lost clamping force.

To ensure safe and reliable operation, damaged or corroded fasteners should always be replaced exclusively with genuine OEM-quality components.