Product Description:

Wheel bolt

OE NO.:   31200241 31373474

Applicable vehicle type: For Volvo

Car tire bolts (also known as wheel studs) are core fasteners that connect the wheel, brake disc (or brake drum) to the wheel hub. They undertake the dual tasks of transmitting the full vehicle weight and outputting driving torque. As the fixing device for the vehicle's only contact component with the ground, their reliability directly relates to driving safety. During operation, tire bolts simultaneously withstand the combined effects of tensile and shear forces, requiring extremely high mechanical strength and fatigue resistance.

Installation Steps:

• Cleaning Inspection: Remove rust and foreign matter from the wheel hub and brake disc mounting surfaces.
• Manual Pre-tightening: Screw the bolts into the threaded holes by hand to ensure proper thread alignment.
• Diagonal Tightening: Use a cross-pattern method, tightening in diagonal sequence in 2-3 stages progressively.
• Torque Wrench Final Tightening: Tighten to the specified torque value using a torque wrench. Air impact wrenches are strictly prohibited.

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