This Flat Head Screw M4x10mm (4) is compatible with the Arrma Kraton and Outcast 4S V2 (ARA4408V2T1, ARA4408V2T2, ARA4408V2T3, ARA4408V2T4, ARA4410V2T1, ARA4410V2T2, ARA4410V2T3, ARA4410V2T4)