Yeah they do one on each corner.
Never used mine so don’t know what it is but it’s very close to metric 16. Depending on the weight of yours you could probably run a 14mm drill up it and tap it out m16x2 and get away with it. Mine is about 60kg so it would easily be lifted on those 4 points if I tapped them out to something common.
If it’s very heavy though find and use the correct size.