Crain 580 Aluminum Drive Nails

These solid aluminum nails can be hammered into pre-drilled holes to fasten tackless strip or metal moldings down onto concrete subfloors, or onto tile or stone when necessary. The semi-square body compresses and holds against the walls of a pre-drilled?1/8" hole. For carbide or masonry drill bits used to drill the?1/8" holes for these fasteners.Fastener dimensions:?1/8" dia. x?5/8" long. Hole size:?1/8" x?3/4". Net weight: 1 lb. jar of nails.