Arcade Ball Grip

This is an arcade grip made to receive a 12 by 8.3mm M6 threaded insert. The one I used can be found here https://www.amazon.com/gp/product/B07X75R4B3/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

It was made to support the SJ@JX brand of arcade stick kits

To get it in I used a heat gun on the print and pushed it in. Be careful when using a heat gun, the print will get hot.

You could also increase the size of the print or hole and glue the insert into it.