Yes. You only need one screw at the single top key hole slot to secure the VT Pack provided that the mounting location is to remain stationary. Caution! Do not overtighten the screw by using a non-torque limiting screw gun or an impact driver as this can damage or weaken the mounting bracket! Afterall, this is not a headbolt on a HEMI! In fact, it is not even necessary for the screw head to make contact with the bracket to keep the VT Pack from sliding off of the screw.