Quite apart from cleats, some aircraft, like the later F27s had mechanical locks operaterate by a handle in the cockpit. When this was opererated the flight controls were faired.
Some might remember the Ansett F27 that was spiralling out of the sky when a procedures manual pulled from behind that capt seat inadvertantly engaged the lock!
An engineer on the ground, his name escapes me, asked the crew to check if the lock had engaged and sure enough........another catastrophe avoided.
(Rebecca will love this Smiley).