Knowing that your 5th wheel trailer hitch is properly mounted in your truck bed is vitally important to the success of your towing. Without a firm attachment point, a 5th wheel hitch is rendered useless to your tow vehicle. When you choose a 5th wheel hitch for your pickup, install it with confidence with a CURT 5th wheel bracket kit and a set of CURT 5th wheel base rails. This pack of 5th wheel mounting hardware is intended to be used for installing 5th wheel base rails and brackets (includes hardware only). The bolts fit CURT universal base rails and come with a zinc finish for long-lasting rust resistance.