nailhead

Nailhead is a term used in carpentry and upholstery to describe a metal fastener with a prominent head and, in some cases, a decorative role. The phrase can refer to the head of a standard nail, but it is more commonly used to describe decorative hardware known as upholstery nailheads or nailhead trim, which is driven through fabric or leather and into a supporting frame.

In upholstery, nailheads serve both functional and aesthetic purposes. Functionally, they help anchor fabric or leather to a frame and can reinforce seams or edges. Aesthetically, nailhead trim creates a border or pattern and is widely associated with traditional forms such as Chesterfield sofas, as well as modern leather furniture and interior accents. The heads are typically domed or flat and come in various sizes.

Materials and finishes vary. Common options include brass, iron, nickel, and steel, with finishes ranging from polished to antiqued. The length of the pin or shank, the diameter of the head, and the spacing between nailheads are chosen to suit the piece and design style. Installations usually involve marking the layout, creating or piercing a pilot hole, and driving the head through the fabric into an underlying support. Tools used can include a hammer, a tack hammer, or a specialized nailhead setting plier, sometimes with a washer or plate to help secure the head.

Removal or replacement may require careful prying and reseating to avoid fabric tearing. Nailhead trim remains a durable, versatile option in upholstery and decorative carpentry. See also upholstery, tacks, brads, and trim hardware.