What is the round button on the seat belt called?

[LilyAnn]

The round button on the seat belt is called the buckle. Here is an introduction to seat belt-related content: 1. Function: The seat belt functions to restrain movement and provide cushioning, absorbing impact energy and mitigating inertial forces to prevent or reduce the severity of injuries to drivers and passengers. Automotive accident investigations show that wearing a seat belt can reduce fatalities by 57% in frontal collisions, 44% in side collisions, and 80% in rollovers. 2. Principle: When a strong frontal collision occurs, due to inertia, the driver and passengers' bodies move forward rapidly. At this point, the seat belt will exert force to 'pull back' the bodies, absorbing some of the impact energy while the airbag inflates and fully deploys.

[VonRuby]

I've been driving for many years, and every time I get in the car, I can't do without that round buckle on the seat belt, which we usually call the seat belt buckle. It's the part you insert into the side buckle ring when fastening your seat belt, mainly made of metal, with a round shape that makes it easy to insert and remove. In critical moments, it locks you securely in place, preventing you from being thrown out during a collision. In daily life, I often encounter situations where it gets stuck, such as when dust accumulates and it doesn't work smoothly, requiring regular cleaning and maintenance with a soft cloth. Don't underestimate this little thing—if it fails, the entire seat belt becomes ineffective, which can be dangerous on the highway. I recommend having a mechanic check it during the annual vehicle inspection to avoid major issues caused by minor neglect. Safety devices need to be reliable, and regular checks can prevent accidents.

[VanHayden]

When traveling with kids, safety is the top priority; that round button in my eyes is called the buckle, the starting point for children to fasten their seat belts. I always remind them to push it in firmly until they hear a 'click,' ensuring the entire system is effective. Once, it wasn't properly fastened and came loose during a bump, giving me a real scare. Child seats have similar designs, and with proper maintenance, they remain durable. After rainy days or when touched with dirty hands, make sure to dry them to prevent rust and jamming. At home, teach kids not to play with it—this little thing carries the responsibility of life protection, and there's no room for carelessness. New cars are tested before leaving the factory, but daily maintenance is up to us—don't skimp on money or effort. Safety first, no compromises.

[McJosiah]

The round button on the car seat belt is the buckle part, which has a simple yet crucial function: it inserts into the latch plate to lock in place. Under normal conditions, it operates smoothly, but in an emergency, the internal mechanism instantly locks to prevent loosening. The material is mostly metal to resist aging and cracking, and avoid using corrosive substances when cleaning. If damage or sticking is noticed, seek repairs immediately—minor issues can lead to significant risks. Daily driving relies on it to protect passengers, with design prioritizing reliability and durability, so maintenance checks should be frequent. Safety standards define testing methods to ensure absolute security. Never overlook any component.

[Zoey]

Car enthusiasts know that the round button is called a buckle tongue; it's often discussed in the modification community for matching with new seats. I use a mild cleaner to wipe it, maintaining its shine and preventing wear. High-end models sometimes feature reinforced designs, but its core function is to secure the seatbelt position. Poor maintenance can lead to stickiness or looseness, affecting functionality; check its firmness every six months. Safety is no small matter—when replacing, choosing OEM-compatible parts is more important than appearance. Experience tells me not to sacrifice practicality for looks; reliability comes first for peace of mind on the road.