Upgrade your furniture assembly with our High-Quality M4 Barrel Nuts, engineered for strength, precision, and long-term reliability. Made from premium carbon steel, these nuts provide exceptional hardness and resistance to wear, rust, and deformation — ensuring every connection remains strong and stable. Each nut is accurately machined with a 4mm inner hole, 8mm outer diameter, and 8mm height, perfectly fitting metric M4 bolts. The slotted head design allows for easy tightening and firm locking when paired with connecting bolts, preventing loosening even under continuous use. These furniture connector nuts are ideal for assembling or repairing beds, cribs, cabinets, tables, and flat panel furniture. Whether you're joining wood, panels, or kitchen countertops, they offer a professional finish and solid structure. Installation is simple — just align the hole and tighten using a slot wrench or screwdriver. The nuts are reusable, making them a cost-effective and environmentally friendly choice for DIYers, carpenters, and furniture makers alike. Choose our colored zinc-plated M4 barrel nuts for your next project and experience superior performance, durability, and a clean, polished look for your furniture connections.