M4.8 Expansion Nut adopts high-quality carbon steel raw material with integral forming process, high hardness and strong tensile strength. Surface heat treatment provides excellent rust resistance, corrosion resistance and long service life in harsh automotive working environment. Precision thread design ensures tight locking, not easy to loosen under vibration and bumpy road conditions. Easy installation, no special complex tools required, saves assembly time and labor cost. Standard M4.8 size tolerance, perfect matching with standard automotive bolts for general replacement and original equipment installation.

This customized M4.8 Expansion Nut is specially developed for automotive original equipment, maintenance and modification use. Widely applied in car body, chassis, interior parts, exterior trim, bumper fixing, bracket mounting and other automotive assembly positions. Suitable for passenger cars, commercial vehicles, light trucks and other vehicle models. Ideal for auto repair shops, auto parts wholesalers, vehicle manufacturers and aftermarket replacement projects.