Essentially all consumer cameras come with a 1/4" tripod socket. This is very standardized - you don't have to worry about different manufacturers using different sockets/screws. So if your camera has a tripod socket, it will almost certainly work with any tripod with a mounting screw. If you look at the specifications for the Cullmann Alpha 2500 you'll see it has 1/4" and 3/8" tripod screws - so it supports consumer cameras (1/4"), including the D3400, and also larger professional cameras (3/8").
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