These solid aluminum nails can be driven into pre-drilled holes to attach endless strips or metal moldings to concrete subfloors, or to tile or stone if needed. The oval head of the No. 078 fits into metal moldings with countersunk holes. The semi-square body compresses and holds against the walls of a 1/8" pre-drilled hole. For carbide or masonry drill bits used to drill the 1/8" holes for these fasteners, see our No. 223 1/8" solid carbide drill bit with No. 225 1/8" hex adapter. Fastener dimensions: 1/8" dia. x 7/8" l. Hole dimensions: 1/8" x 7/8".
