1) Aces 2) Achieves perfectly 3) Arrests 4) Attaches 5) Barrelful at a hardware store 6) Bed material 7) Brads 8) Brads or spads 9) Busts 10) Carpentry needs 11) Carpentry supply 12) Catches but good 13) Catches cold 14) Catches red-handed 15) Catches with spikes 16) Common and headless 17) Common scratchers Found on https://www.crosswordclues.com/clue/nails
one of the most important uses that have been made of metal. Traditionally they were turned out by the smiths, and then as demand grew, nail factories appeared, but the nails they produced were still mainly hand wrought and were usually square or rectangular ie 'flat nails'. The early machine ... Found on http://www.encyclo.co.uk/local/20935
Hand-made nails were used particularly from Roman times for fixing hinges and locks before the advent of screws. They were also used concurrently with wooden dowels, for joining planks before the introduction of mortise and tenon joints, although they are seen on country furniture made well into the 18thC. Machine-made nails were made from the earl …... Found on http://www.encyclo.co.uk/visitor-contributions.php
In humans the nails are flattened, horny, protective coverings on the upper surface of the outer segments of the fingers and toes comprised of dead cells containing the fibrous protein keratin. Each nail consists of a root concealed within a fold of the skin; an exposed body attached to the surface of the skin; and a free anterior extremity called ... Found on http://www.probertencyclopaedia.com/browse/EN.HTM