These color anodized steel M4x12mm screws hold in place an artwork plexiglass for the MadCatz TE Round 1, Round 2, and TE-S joystick. It's a perfect replacement for older, worn out hex screws that come with your joystick. A 2.5mm long arm hex key is required to tighten these hex screws.
Note that the small screws have a small marking that bears the manufacturer logo.
Note: the 3mm hex key normally associated with the original MadCatz screws will not fit these screws.