The Blind Nail allows you to have an invisible mechanical connector. Simply insert the dual head nail into the set tool to set the nail, then tap the molding or wood into place on the other side. The Kit includes the Blind Nail Tool and Blind Nails. Blind Nail Kit 3/8" x 3/16" Qty. 100 double-ended nails. Blind Nail Kit 1" x 5/8" Qty. 100 double-ended nails.