The Bianchi uses 36mm diameter BB bearing cups, with RH threading on both sides. I strongly advocate putting LocTite on the drive side, to prevent self-disassembly on the road. (Been there, done that with French and Italian bikes.)

In contrast, the Giant uses 35mm=1.375" BB bearing cups, with self-tightening LH threading on the drive side. LocTite is superfluous and definitely not recommended in this case. English- and Swiss-threaded BBs do not self-disassemble on the road.