If you are repairing, restoring, or cleaning an original Sega Genesis 3-Button Controller (Model MK-1650), having the correct casing screws is essential. Due to Sega utilizing multiple manufacturing plants across the globe (China, Taiwan, Japan, and Malaysia), there are at least seven known internal variants of this iconic controller.

Crucially, these variants utilize two distinctly different sizes of outer casing screws. Forcing the wrong screw into your controller shell can strip the plastic posts or crack the casing. Please review the specifications and compatibility lists below to ensure you purchase the correct set for your specific controller variant.

Thin Casing Screws

Product Overview: This is a lot of 50 high-quality replacement casing screws for the Sega Genesis 3-Button Controller (MK-1650). These are the “Thin” variant screws, which are the most widely used fasteners across the various