The Lippert W14173 Injection White Sink does not include mounting hardware. Although the old sink with the same part number used permanently installed studs with wing nuts, these are not compatible with the new sink model. To mount this sink securely, you will need universal RV sink mounting hardware. This typically includes sink mounting clips that attach underneath the countertop and #8 or #10 pan head screws (about 1/2" to 3/4" in length). Plumber’s putty or a gasket is also recommended for sealing. Universal mounting clips such as Camco Sink Mounting Clips (available in packs of 4 or 6) are commonly used and widely available at hardware stores and online. Since OEM mounting hardware for this sink is not sold separately, using universal clips and screws is the best solution a proper, secure installation.