The =common wire brad=, shown at (_c_), is used for practically the same purposes as the regular finishing nail, but it is from two to four gauges heavier. This wire brad is useful when a heavy nail with a small head is required, particularly in hardwood, where a light finishing nail will not penetrate without bending. The =flooring brad=, shown at (_d_), is a nail used almost exclusively for flooring. This nail is made of heavier gauge wire than other nails of this type, and drives easily, even in hard, maple floor. The construction of the head of this type of nail allows for severe “drawing” without splitting the tongue of the flooring boards. The =fine-wire nail=, shown at (_e_), commonly called a =lath nail=, is made in four sizes and is used for nailing lath to studding. Owing to its smoothness, cleanliness, and easy-driving qualities, this type of nail is extensively used. A short, heavy nail, the whole length of which is barbed to increase its holding qualities, is shown at (_f_). This nail is known as a =barbed roofing nail=, and is generally used for nailing tin roofs and ready, or prepared, roofing of every description. It is also used with tin roofing caps. At (_g_) is shown a =slating nail=. This type of nail is formed from heavy gauge wire, and has a flat head that is large in proportion to its length. This nail is used only for slating, but is not so durable as the cut nail made for this purpose. Nails of this kind are made in only five sizes. A type of nail used for attaching wooden shingles, and known as the =shingle nail=, is shown at (_h_). This nail is seldom carried in stock, however, as threepenny and fourpenny common nails answer the purpose. These shingle nails are clean and easily driven, but are not so durable as cut nails. A very heavy nail of the same character as the common wire nail, but made much heavier, in order to increase the holding qualities and to provide greater durability, is known as the =fence nail=. This nail is made as shown at (_i_). At (_j_) is shown a =clinch nail= that is manufactured from soft wire or annealed hard wire. This nail answers the same purpose as the old-style wrought, or clinch-cut, nail commonly used in the construction of batten doors, etc. The metal being very soft at the end of the nail, allows the point to be bent and driven back into the wood to form the clinch. These nails do not differ from the common wire nail, except in the form of the head and the material from which they are made, as will be seen from Fig. 3 (_j_) and Fig. 2.