Nylon Hex Spacer Kit: 320 Pcs of precision M3 threaded pillars and nuts, ideal for professional PCB motherboard assembly. High Quality & Anticorrosive: Crafted from robust nylon, these spacers and nuts are resistant to high temperatures, oil, and corrosion. Easy Installation & Storage: Comes with a practical plastic box that keeps all components neatly organized and easily accessible. Versatile Applications: Suitable for a wide range of industries including electronics, machinery, stationery, and automotive manufacturing. Precision Engineering: The M3 thread ensures secure and precise mounting of components, essential for intricate motherboard projects. Crafted with durability in mind, this Professional Nylon Hex Spacer Standoff Screw Nut Kit offers unparalleled quality for your PCB motherboard assembly needs. With its non-magnetic, thermally insulating properties, it stands out in a crowd of similar products. Each piece is meticulously designed to withstand the test of time.