For the arcade guys, I need some help
If you didnt see it in a past thread of mine, I picked up a nice sega star wars trilogy stand up arcade locally not to long ago. The only flaw it has is that the trigger is either broken, or is very dirty or something. The trigger sticks every time I press it, so I have to use the other button if you are familiar with the joystick. So I want to open it up and clean/fix it. This is a picture of the screws in the joystick. I don't know much of anything about arcade machines, So I was wondering if you guys new where I could get the bit to open it up. Or if you knew what size it is for this exact joystick. For all I know it could be some common starbit I can find at home depot, but I just thought I should ask before I go running around. My phone takes shitty pictures So I hope you can figure it out from this picture. Thanks guys!
Also, if you have one that I can buy, that would be great as well.

Comments
i might have a spare one of these
if i find one ill send it to you
i think they also open tengen games