Danish L-Shaped Nails: Authentic Danish L-shaped nails from Denmark. Danish Nails are a must have for seat weaving. They pair with Unlaced Danish Cord and Laced Danish Cord. Denmark Cord is a very popular weaving material. Danish Nails are 90 degrees, and make a perfect right angle. Although Danish Nails are primarily for seat weaving they can be used anywhere. These L Nails are very popular in photography and photo hanging as well.