Answer to: Screw identification help iPhone 4The title of this is "iPhone 4" but the list of screws is for "Verizon 4S" and some screw sizes will differ. The screws in the iPhone 4 can be the same length but some differ in diameter. A calliper is instrumental in defining the sizes. Also, I'd like to suggest using rubbing alcohol and a screen cleaning cloth for cleaning connections. It doesn't leave a film and evaporates quickly, so no need to "dry" after use. Just don't use excessive amounts. Cheers and good luck!!!