Perfect for connecting wood pieces such as boards kitchen worktops cabinets cupboards beds chairs tables and various DIY projects. Advantage: Made of 304 stainless steel and 18-8 without surface coating providing enhanced strength and better resistance to corrosion compared to standard stainless steel or zinc-coated fasteners. Instruction: Easy to install high precision time-saving deep thread not easy to fall off. Notice: Please confirm the size before ordering.