16-piece set of serrated flange hex nuts (M10-1.5) in a transparent storage box What you get 16 heavy-duty hexagonal flange nuts with serrated flange, packaged in a transparent plastic box that keeps parts organized and protected during storage and transport. Key specifications Thread size: M10-1.5 mm (metric) Nut height: 10 mm Hex width (across flats): 15 mm Material: 304 stainless steel Manufacturing tolerance: ±0.2 mm Style: serrated flange hex nut (provides a larger bearing surface and helps resist loosening) Why this set is useful Organization and protection: the included clear plastic box keeps all 16 nuts sorted and prevents damage or loss when not in use. Corrosion resistance: made from 304 stainless steel for reliable performance and rust resistance, suitable for outdoor or humid environments. Secure fastening: the serrated flange increases grip on mating surfaces to reduce backing-off under vibration compared with standard hex nuts. Ready for metric systems: M10-1.5 thread and metric dimensions make these compatible with standard M10 bolts and assemblies. Typical applications Automotive and machinery repairs: fasten components, brackets, and panels where vibration resistance and corrosion protection are required. Outdoor fixtures and construction: use for gates, rails, sign brackets, and exterior hardware exposed to weather. Equipment assembly and maintenance: ideal for industrial equipment, agricultural machinery, and general-purpose metric assemblies. Practical notes Designed to fit standard M10-1.5 bolts; confirm thread pitch before use. The serrated flange is intended for use against metal or hard surfaces; avoid use on finished or soft surfaces where the serration could mark the finish. Contents: 16 serrated flange hex nuts (M10-1.5), packed in a transparent plastic box.