m4 m5 m6 m8 m10 metal hexagon hex socket allen head embedded insert nut e-nut for wood furniture inside and outside thread customization ava

metal: made from a durable metal material, providing strength and reliability for wood-to-metal connections.finish: typically comes in various finishes, such as zinc-plated, to enhance corrosion resistance and appearance. features a hexagonal socket (allen head) design, allowing for easy and secure tightening using an allen wrench or hex key. designed to be embedded into wood furniture, providing a stable and secure connection point for fasteners..syi