Recess Butterfly Catch. Very Strong Design. Zinc or Black Finish. Padlock TabDimensions: 78 x 82 x 22mm Fixing Holes: 5mm. If you’re looking for a high-quality- strong recessed butterfly catch- then look no further than this model. This catch is made from zinc-plated steel- making it extremely durable as well as resistant to rust and corrosion. It’s ideal for use on flight cases and box lids and is easy to fit. You can attach it using screws or rivets – whichever method you prefer. The design is extremely strong- meaning it can withstand a lot of wear and tear thanks to its twist-and-lock mechanism. There is a choice of black or zinc finish.. butterfly catch-flight case catch