This cap nut is a type of fastener which gets its name from its shape. It is a nut that has a domed top to prevent contact with the external thread to protect the threads or protect other things the threads would rub against.
This cap nut is a type of fastener which gets its name from its shape. It is a nut that has a domed top to prevent contact with the external thread to protect the threads or protect other things the threads would rub against.