Can I take a lock to lock the door, a bicycle chain lock and a patch panel when I fly?

Follow-up: show you the list of things I brought. There is a lock to lock the door of the rental house, a chain bicycle lock and a socket. Then it was gone, and there were some clothes in the backpack. Put these things in the backpack and the computer in the computer bag. Take a look, these weights are about 10 kg. This is my first time to fly. I don't understand. Answer: this chain and lock can't be taken. It is also dangerous goods. Question: Is it ok to have a computer headset? I looked at Baidu and said I couldn't get two packages. I have a backpack and a computer bag. The computer bag won't fit in the backpack. Answer: It depends on the size of the bag, which is related to its size and weight.