The screws of the toilet seat are all plastic

The toilet seat won't be tight, and you should install it correctly. Only if you can fix the approximate position, you can do it.

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Toilet (toilet). >>>More

Try it with an open-ended wrench or needle-nose pliers or a small movable wrench.

The frequency of use of the toilet seat is relatively high, and it will inevitably be damaged after a long time, but many friends change the toilet seat for the first time and have no experience, and the most headache is that they can't find a fixed place. From the outside, there are no screw holes at all, and the whole design is streamlined and thick. So how do you change the toilet seat without screws before the fight? >>>More

The screws are green, you can find a brush to clean them, or you can try it with a rust remover or something.