Redcat Racing BS903-076 B-Head Cross Screw(BT3*20) 12 PCS ~ Works with these models ONLY: AFTERSHOCK 3.0,AFTERSHOCK 3.5,AFTERSHOCK 8E,BACKDRAFT 3.5,BACKDRAFT 8E,CALDERA 10E,CALDERA 3.0,CALDERA SC 10E,CALDERA XB 10E,EARTHQUAKE 3.0,EARTHQUAKE 3.5,EARTHQUAKE 8E,REACTOR RS 3.3