Nahtkante

Nahtkante is a German term meaning seam edge. It refers to the edge formed by a seam, the line along which two pieces are joined by stitching, welding, adhesive, or another bonding method. The precise meaning depends on the field, but in general it denotes the boundary of a seam and can refer to either the inner or outer edge of the joined area.

In textiles and leatherwork, the Nahtkante is the line where fabric or material pieces meet. Sewing creates a seam along this edge, and the surrounding fabric often includes a seam allowance to protect against fraying. Finishing techniques such as serging, overlocking, zigzag stitching, or binding aim to produce a clean Nahtkante and to secure the edge, affecting fit, durability, and appearance.

In metalworking and welding, the Nahtkante denotes the border of a weld seam or joint. Proper edge preparation, beveling, and gap control influence weld penetration and geometry. During inspection, the Nahtkante is checked for continuity and for defects such as porosity, cracks, or undercut.

The term is also used in upholstery, automotive bodywork, and other industries where parts are joined. In all cases, the Nahtkante describes the critical edge produced by the joining process, with quality and finish impacting strength, aesthetics, and functional performance.