I like that – very clever.
I didn’t believe my single hasp latch was keeping my galley hatch secured tightly enough. I found these stainless steel Mizugiwa latches on amazon.com. Two more galley hasp blocks were necessary, but that was easy enough. And they will accept a small padlock.
Here’s where I found them: https://www.amazon.com/gp/product/B01LA9Q9RC/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1