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 multi-pack of 5th wheel mounting bolts is intended to be used for installing 5th wheel base rails. The bolts fit CURT universal base rails and come with a zinc finish for long-lasting rust resistance. Eight bolts are included in this package.