Here are some of the replacement arcade joystick tops (and discs) that I have designed to work with your standard Sanwa type joystick, that have a screw thread.

They are push on to fit and don't require screwing.

I have tested them with a variety of different Sanwa clones and the fit varies but only a little, a first time fitting can be a little fiddly but they also don't come off easy so I see that as a good thing. Mind you don't trap your fingers between the top and your control board when the blighter suddenly drops on.

_4415H in the file name means: 4 top layers, 4 bottom layers, 15% infill & H is Hex infill.

THE STL FILES FOR THIS DESIGN ARE AVAILABLE THROUGH MY PATREON & PATREON SHOP.
patreon.com/3DFreeman

You could join up for a month and download the STL files for all my designs or you can now buy bundles from my Patreon shop for $3

I also have a Thingiverse page:

https://www.thingiverse.com/3dfreeman/designs

Here's a non-affiliate ebay link to the type of cheap and cheerful Sanwa clone I use:

https://www.ebay.com.au/itm/334119951114?hash=item4dcb19db0a:g:Ka0AAOSwaqxhHjfn&frcectupt=true

Thanks for checking out my designs.
Print Settings
Printer:

Aquila X2
Rafts:

No
Supports:

No
Filament brand:

Voxelab
Filament material:

PLA
Notes:

The two versions of joystick disc are 00 (1mm thick - closer to original) and 01 (2mm thick), the reason I am bringing this up is that depending on how you adhere your prints to the bed, the 1mm thick version might be a challenge to remove off the bed once printed.