Another possibility would be to use globs of hot glue as makeshift posts (screws WILL go into them), but I'm not sure how well hot glue will 'merge' or 'connect' with the plastic on the inside of a NES cartridge. I'd think it'd be possible to create some makeshift plastic posts with holes in them (pre-drilled for the screws) which could be glued to the inside of a normal NES cartridge, at the correct spots. This comes from this source (worth reading): Ĭould you use the 60->72 pin adapter in a NES cartridge shell/case that doesn't have the plastic posts for the adapter screws? Yes, but I would strongly recommend creating some kind of makeshift way for the adapter to be held in place very firmly.

Here's an example of a 'non-official' 60-pin PCB (an Everdrive, actually! Note that the Everdrive PCB has a large circular hole in it - now you know what it's for!) using one of said adapters in a Gyromite cartridge shell: The 'internal' screws actually hold the adapter in place - without these, as well as without the large round plastic peg (which the centre screw goes through - note the large circular hole in the Famicom PCB!),a Famicom PCB may wiggle/jostle around (this could impact reliability of the 72-pin connector making good contact with the NES itself, if there's a ton of mishandling). The cartridges that contain these are usually 7-screw (see first picture) - 5 for holding the front/back casing together (these are your standard NES casing screws older revisions usually can be opened with a flathead, but some may be reverse Torx), and 2 'internal' screws of a different size (larger, and silver) which actually screw into plastic posts in the casing. The 60->72 pin adapters found in old Gyromite cartridges, as well as some other early first-gen games, looks like this when opened up (I can attest to this because I have one):

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