Are Chassis Bolts Important?
2 Answers
Chassis bolts are very important. Safety Hazards: Loose bolts can pose significant safety risks without the owner's awareness. Therefore, car owners must pay attention to the inspection of automotive screws, especially those on the chassis. Inspection Cycle: The chassis endures substantial vibrations, so the screws on the chassis are specially treated by manufacturers, with enhancements in steel quality, hardness, and shock resistance. Generally, screws won't come loose unless the vehicle is of very poor quality, so there's no need to worry excessively. The recommended frequency for inspecting automotive screws is every one to two years during a maintenance visit to a 4S shop.
I've been driving and repairing cars for forty years, and chassis bolts are absolutely not to be underestimated. They're like the joints of a car's skeleton, connecting core components such as the suspension, steering system, and chassis frame. Once bolts loosen, driving on bumpy roads will cause squeaking noises, the whole car will wobble as if falling apart, and handling becomes sluggish and dangerous. At high speeds, if control arm bolts loosen, the wheels may deflect, increasing the risk of rollover. I once repaired a wrecked car where loose chassis bolts caused brake failure, nearly leading to a serious accident for the owner. I recommend checking the bolts every 5,000 kilometers or before long trips, gently tightening them to the manufacturer's standard with a torque wrench—don't over-tighten to avoid damaging the threads. Older cars are especially prone to loosening; proper maintenance extends the car's lifespan, saving money and ensuring peace of mind.
