I believe I have found the screws I need to futher complete this task: The screws for the twin thumbs (circled in red)... are 3/8" Flat Heads by Woodland Scenics Hob-Bits. I found and bought them from the Railroad section at the only HobbyTown USA here in San Antonio. The long screw for the 3 fingers (circled in red)... is from this pair of Studio35 Sunglasses I found and bought from my local Walgreens. In order for the long screw to fit all the way, I had to sand off half of the area of the right and left fingers where the hole for the screw was made (circled in red). The result is this remarkable feat: To demonstrate the effectiveness this new hand, I have placed it on this ROTF Voyager class Starscream: In his alternate mode, the thumbs and fingers can be pulled upward so that the 3 fingers don't stick out like sore thumbs (no pun intended ). In his robot mode, the hand works just as effectively. It can even grasp and hold this pen tight: What I need now, is something that I can place on top of the pointed end of the long screw (circled in red) to ensure that the finger on that side of the hand doesn't fall off. CAN ANYBODY HELP ME WITH THAT PLEASE???