I'm not too sure about this to be honest. King scales to far over 10x Crona's LS value via scaling (9083971717340 kg vs 9.0444749e13 kg). King should be far superior LS-wise to Robin, who, with the sheer force of her grabs could break the bones of Black Maria. Black Maria should at the very least should be comparable to Beginning of Timeskip Sanji, who could
survive tens of thousands of meters underwater, where his bones and organs would be subject to large amounts of pressure where they should collapse on themselves.
Since King would be able to do what Robin did to Black Maria, someone whose internals are extremely resistance to pressure, I'd imagine that Crona would end up far worse than Black Maria was if King is able to grab onto them.