4, Using the holes in the front and rear mount assemblies as pilot holes, drill (8) 13/32" dia holes through the Flatbed. See FIG. 2. 5. Using the newly drilled holes, secure the Skid Sprayer to the Flatbed with (8) 3/8° x hex hd. bolts, (8) thin flat washers, (8) thick flat washers under the bed, and {8) lock nuts, See Parts illustration. NOTE: (8) 3/8" x 1" Truss Head Machine Screws, Flat Washers and Lock Nuts are provided to file the holes in the Fiat bed when Sprayer is removed. 6.