If you don't want nail holes, use construction adhesive, available at any Lowes, Home Depot, Ace. Just be aware that once it's on, it won't come off with-out damage to what it was attached too.
2005 GMC Sierra SLT CC/SB with 6.6L Duramax/Allison
2002 Automate 5W, 32 ft, 13,280 GVWR
Valley Glider Hitch