Help, Need Some Ikelite Parts To Attach Tray (In Cozumel Now)

Picked up something for a trip, a small housing for a P&S to play with, and when I opened the box, realized in did not have the proper parts to attach to tray. Called Ikelite and said need 12 x 14 x 1 Nut/Bolt stainless combination, could not get them before getting on the plane and have had no luck yet finding here in Cozumel. Any recommendations of where to look>