Button Rivet Locking Nuts Set Tuercas De Bloqueo Tipo Remache De Botón

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M4 M5 M6 MULTI-SIZE ASSORTMENT: Includes M4×20, M4×25, M5×25 and M6×25 sizes to cover common fastening, mounting and repair needs. The mixed assortment gives you practical options for automotive panels, furniture, equipment maintenance and everyday DIY projects
PETAL-SHAPED EXPANSION GRIP: Expandable petal legs spread behind the mounting surface as the fastener is tightened, increasing rear contact area and helping distribute clamping force. The design creates a stable threaded mounting point in compatible thin or hollow panels
ZINC-PLATED CARBON STEEL: Made from strong carbon steel with a zinc-plated finish that helps resist oxidation, moisture and everyday surface wear. Durable metal construction makes these locking nuts suitable for routine garage, workshop, repair and assembly applications
IDEAL FOR BLIND-SIDE FASTENING: Designed for locations where the back of the workpiece is difficult or impossible to reach. Create a secure threaded connection from one accessible side without having to hold a conventional nut behind the panel, making installation more convenient in confined areas
VERSATILE REPAIR & ASSEMBLY USE: Suitable for automotive sheet metal, equipment panels, hollow frames, furniture reinforcement, machinery maintenance and home improvement projects. Choose the correct size for the hole diameter and panel thickness and avoid over-tightening during installation