Here is a handy little kit to help you mount custom accessories to your factory Toyota Accessory Rail. The square nuts are 1/4 inch thick steel that has been zinc plated to prevent rusting. They will fit 05 to 18 Tacoma and Tundra accessory rails in the bed and 03-09 4Runner roof racks. This is the same hardware kit that we provide with all of our bed accessory brackets.
Each kit (order quantity of 1) comes with 2x 1/4 inch thick zinc plated square nuts, 2x 3/8″x1″ grade 5 bolts and 2x flat washers.